Lancashire Police previously said detectives and gas experts discovered the cause of the explosion in Heysham was a gas pipe which had been cut inside number 20 Mallowdale Avenue.
Four arrested after death of child in house explosion gazettelive.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from gazettelive.co.uk Daily Mail and Mail on Sunday newspapers.
The force said a criminal investigation assisted by gas experts had identified the cause as a gas pipe which had been cut inside 20 Mallowdale Avenue. | ITV News Granada