How many people were killed on 9/11?

The World Trade Center flag is folded during a memorial service in New York for the victims of the attacks.

Nearly 3,000 people from all over the world died in the attacks on the World Trade Center and the Pentagon.

They included 67 British people and around 300 New York firefighters.

About 260 passengers and crew on board the four crashed aeroplanes were also killed.

Rubble from the collapse of the World Trade Center twin towers Dust from the collapsed towers contained a dangerous mix of chemicals

Thousands more who were near the World Trade Center site also suffered illnesses related to the clouds of dust that engulfed the area.

In 2011, 10 years after the attacks, American officials said more than 18,000 people were still suffering from illnesses linked to the dust.

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