Watch live from the Potomac River on Tuesday, 4 February, where recovery efforts continue after an American Airlines regional passenger jet and a US Army Black Hawk helicopter collided and crashed into the water river near Reagan Washington National Airport. Pieces of wreckage were removed from the water on Monday. On Monday, crews from the US Army Corps of Engineers used large cranes to remove parts of the jet that was involved in the deadliest US air disaster in almost 25 years on 29 January.