31.   Police said the walls of the warehouse fell on top of the two firefighters.

32.   The bodies of the four firefighters were left near the river until national investigators, who arrived late Wednesday, could examine the scene.

33.   The bodies of the four firefighters were taken to a Washington hospital where autopsies were to be performed.

34.   The other firefighter suffered minor injuries.

35.   The six firefighters were the only victims found in the warehouse after the blaze.

36.   The three firefighters are among the four who have died on duty in New York City this year.

37.   The three firefighters were killed when their aircraft spiraled into the ground and exploded in a huge ball of smoke and flames.

38.   The three firefighters were the second, third and fourth to die on duty in New York City this year.