Owner and managing director Henry Carver praised the "huge dedication" of staff since the fire, which was caused by "a malfunctioning flue pipe".

BBC: Carvers fire, Wolverhampton

During a routine run in 1986 a few days after the Chernobyl fire, one of the pebbles became lodged in a pipe feeding the fuel to the reactor.

ECONOMIST: Prospects for a new type of nuclear reactor look mixed

You may know the famous story that the president was wearing his trademark stove pipe hat and he began because he was so tall to attract fire from the Confederate forces until Holmes shouted without thinking these famous words: Get down, you fool.

CNN: Transcript: Clinton speaks at Memorial Day Event

Authorities announced the criminal investigation last Friday, the same day investigators said a paramedic who responded to the fire was arrested on suspicion of possession of a destructive device after investigators allegedly found materials to make a pipe bomb at his home.

CNN: Cause of catastrophic Texas explosions remains mystery