A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Ji Chunpeng)

NANJING, Dec. 13 (Xinhua) -- The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII).

Despite the winter chill, thousands dressed in dark attire gathered at the public square of the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, with white flowers pinned to their chests, to take part in the ceremony.

China's national flag was flown at half-mast in front of the crowd that included survivors of the massacre, local students and international guests.

Sirens began blaring at 10:01 a.m. Drivers in the downtown area stopped their vehicles and honked in unison, while pedestrians paused to observe a moment of silence in memory of the victims.

The Nanjing Massacre took place when Japanese troops captured the then-Chinese capital on Dec. 13, 1937. Over the course of six weeks, they proceeded to kill approximately 300,000 Chinese civilians and unarmed soldiers in one of the most barbaric episodes of WWII. ■

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Ji Chunpeng)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Ji Chunpeng)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Ji Chunpeng)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Bo)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Bo)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Bo)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Ji Chunpeng)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Ji Chunpeng)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Bo)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Bo)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Ji Chunpeng)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Ji Chunpeng)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Bo)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Bo)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Bo)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Bo)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Bo)

People strike the Bell of Peace during a national memorial ceremony for the Nanjing Massacre victims held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Bo)

Doves are released during a national memorial ceremony for the Nanjing Massacre victims held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Bo)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Ji Chunpeng)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Xiang)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Xiang)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Xiang)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Xiang)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Xiang)

A national memorial ceremony for the Nanjing Massacre victims is held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Xiang)

Doves are released during a national memorial ceremony for the Nanjing Massacre victims held at the Memorial Hall of the Victims in Nanjing Massacre by Japanese Invaders in Nanjing, capital of east China's Jiangsu Province, Dec. 13, 2025. The 12th national memorial day was observed in Nanjing on Saturday to honor about 300,000 victims killed by Japanese troops during the Nanjing Massacre, in a year that marks the 80th anniversary of the end of World War II (WWII). (Xinhua/Li Xiang)