A woman was pulled alive from the rubble of a house destroyed in an explosion in Sunderland this morning.
One house has been completely destroyed by the blast while a neighbouring property has been heavily damaged, with debris scattered across the road.
A woman whose house exploded only survived the gas blast because a fridge fell on top of her.
She was taken by air ambulance to Newcastle Royal Infirmary in a "serious but stable condition".
Tracy Tia Judson said her sister, who is in her 50s, suffered minor burns and was able to talk to ambulance staff.
Emergency services raced to the scene after reports of a domestic blast on Rosslyn Avenue in the Ryhope area of the north east England city.
The company said it was "urgently" investigating the cause of the blast.
Tracey Pounder, 51, said she heard an "almighty bang". I went upstairs and you could see dust rising.
Officers have also attempted to re-assure the public by saying "There is nothing to indicate at this time that this incident is linked to terrorism".
"Half of the semi has gone and next door is wrecked".
The emergency services said they were unable to give further details, including whether anyone was trapped in the rubble.
"Just had call off me Mam she's in shock as she's in Roselea [sic] Avenue".
The sound of the explosion at 8.48am could be heard more than a mile away in Grangetown, Hill View and Hendon.