A 31-year-old man has died following an explosion at a flat in Hull.
Two firefighters were taken to hospital with minor injuries after they responded to the blaze and subsequent blast on Beverley Road, Humberside Police said.
The man was taken to Hull Royal Infirmary after he was pulled out by firefighters but died later.
The explosion happened just after three fire engines arrived at the scene and an investigation is now under way by fire and police officers as well as gas engineers.
The ground and first-floor bay windows were blown out of the white-brick terraced house and a large amount of debris was left in the small front garden.
A force spokesman said police were called by the fire service at 6.23am on Friday.
He said: “Sadly a 31-year-old man has died at Hull Royal Infirmary following a serious house fire at a flat on Beverley Road, Hull, this morning and his family have been supported by specially trained officers.
“We have conducted a joint investigation with Humberside Fire and Rescue Service into the circumstances and it is not being treated as arson.
“The man’s death is currently being treated as non-suspicious but unexplained and we are now preparing a file for the coroner.”
A spokesman for Humberside Fire and Rescue Service said firefighters were called to the property at 6.06am.
He said: “Shortly after the arrival of three appliances, an explosion occurred within the property.
“Two firefighters were checked by paramedics at the scene, while a further two were conveyed to hospital suffering minor injuries.
“A man with serious injuries was brought out of the property by firefighters. He was conveyed to Hull Royal Infirmary by ambulance.”
He said: “Fire investigation officers are now working closely with Humberside Police and representatives from gas providers to ascertain the cause and origin of the fire.”