Internal preliminary safety report suggests staffing was lower than it should be for ‘time of day and volume of traffic’, New York Times reports

• Officials say no survivors expected in DC plane crash
• First known victims include figure-skating champions
• Visual guide – how did the DC plane crash unfold?

Multiple media including the New York Times, Reuters and CNN are saying the Black Hawk helicopter was carrying three soldiers. No senior army officials were onboard, they reported, citing US defence officials.

Multiple sources are now saying that about 60 people were onboard the American Airlines plane that collided with the helicopter.