Derbyshire Fire and Rescue Service has reportedly begun an investigation with police into the cause of a fire that caused extensive damage at a former chocolate factory in Belper:
A spokesman told the Derby Telegraph:
All we know is there has been an explosion in the building.
We think it has been caused by a gas cylinder. At this point, we are waiting for an investigation unit to turn up to determine whether it was arson.
These investigations will be carried out in conjuction with the police. No-one has been injured but the building is 100% damaged.
More top news
UK authorities are "urgently looking into" reports British boy
Wayne Rooney and his wife Coleen are expecting their fourth child, the couple have announced.
As the silence came to an end the crowd began to applaud and people shouted "I am not afraid!" in defiance of the attacks.