Baltimore bridge controlled explosion: army blows up collapsed section – video

US army explosives experts have brought down the largest remaining collapsed section of the Francis Scott Key Bridge in Baltimore. Officials said the detonation went as planned. 'It's a lot like peeling back an onion,' said Scott Spellmon of the US Army Corps of Engineers. The bridge section collapsed on 26 March on to the bow of Singapore-flagged container ship Dali, which had crashed into one of its pylons