National Transportation Safety Board announces recorders are now at a lab for evaluation; operation to recover bodies continues

• Full report: cockpit voice and flight data recorders recovered
• Victims: world champion Russian pair and US skaters were onboard crashed plane
• Visual guide – how did the DC plane crash unfold?

It’s almost 10pm in Washington DC, and almost 24 hrs since a fatal mid-air collision between a regional passenger jet and a US Black Hawk military helicopter – a tragedy that has been described as one of the worst aviation disasters in the US in decades.

There were 67 people on board both aircraft, and there are no survivors.