He added that a fire investigation had concluded the blaze was probably caused by accident.

BBC: Appspond Lane blaze: Fire crews still visit

On Monday, WRS said it was investigating the cause of the blaze but it "could have started by accident, perhaps even by a spent firework".

BBC: Power lines to be restored after Appspond Lane fire

"Work by unlicensed welders, multi-layered sub-contracting and poor management all contributed to the blaze, " Luo said two days after the accident.

CNN: Deadly fire highlights China's growth problem

She said the blaze was believed to have been started by a cooking accident.

WSJ: Myanmar Refugees Die in Fire at Thai Camp

Officers were trying to determine the cause of the blaze, which wasn't the result of an accident.

NPR: Patrol: 5 Die In Limousine Fire On Calif. Bridge

The death, which happened on 12 July 2010, was initially treated as an accident until a post-mortem examination found the boy was dead before the blaze began.

BBC: Yaseen Ali Ege: Yousef Ali Ege denies killing son