Bedford: Partially collapsed flats seen on video after fire
Video from the scene of a gas explosion showed a three-storey building partially collapsed and the rest burnt out.
Two people were taken to hospital after fire ripped through 20 flats in Bedford, destroying the roof.
The incident happened in the Redwood Grove area of the town at about 09:30 BST.
A witness described hearing a "huge boom" and said flames spread quickly.