08:45-Aircraft crashes into one tower of World Trade Centre.
08:55-Aircraft crashes into second tower of World Trade Centre live on television.
09:05-President Bush told of attacks.
09:13-Reports of aircraft hijacking before attacks.
09:23-US official says attacks were terrorist-related.
09:30-President Bush speaking from Florida calls it "Apparent terrorist attack" and pledges to "Hunt down" those responsible.
09:43-Democratic Front for the Liberation of Palestine claims responsibility on Abu Dhabi television.
09:43-The Pentagon begins evacuating.
09:44-Aircraft crashes into The Pentagon.
09:45-West Wing of White House evacuated.
09:52-State Department is evacuated.
09:52-All aircraft grounded across America.
09:54-Official from democratic Front for the Liberation of Palestine denies group was responsible for attacks.
10:00-Staff at United Nations evacuated.
10:02-South Tower of the World Trade Centre collapses.
10:15-London Stock Exchange plunges in afternoon trading.
10:17-Tony Blair says he is "terribly shocked"
10:18-French Prime Minister Lionel Jospin says he is "Horrified".
10:22-In Washington, the State and Justice departments are evacuated, along with the World Bank.
10:23-President Putin of Russia calls the attacks "terrible tragedies".
10:25-reports of aircraft crash in western Pennsylvania.
10:26-Reports of carbomb exploding outside State Department.
10:26-Israel offers aid to US.
10:27-North Trade Centre tower collapses.
10:31-Buildings across America are evacuated.
10:46-Palestinian leader Yassir Arafit condemns the the attacks.
10:47-Reports of another aircraft heading towards Washington.
10:50-London Stock Exchange evacuates.
11:13-Fire reported near White House.
11:21-American Airlines confirm it has lost two planes with 156 people on board.
14:54-The first family are taken to secure places.
15:00-State Department denies reports of carbomb.