A house explosion which killed two people in Bristol was caused by a "hand grenade set off by an ex", it has been claimed. The blast on Sunday left a man and a woman dead and three injured, with police sending in a bomb squad.

Reports now say it was caused by a man setting off a grenade, killing himself and his ex-partner. The three other injured people , including a child, have since been released from hospital.

One local told The Sun: "He's turned up at her house with a grenade and detonated it on the doorstep and killed the pair of them.

"At first when I heard the boom I thought it was a gas explosion or even a huge car crash. I could feel the whole house shake."

On Monday, rumours of the grenade attack circulated online -claiming the male victim was ex-forces.

One wrote: "Dude pulls a hand grenade on his mrs is just on another level of b*tshit crazy."

Police are still investigating the blast which happened at 6.30am on Sunday. A cordon was put up but has since been relaxed.

Superintendent Matt Ebbs: “At about 6.17am we received a call to attend a domestic-related incident at a residential address in Sterncourt Road.

“Officers were sent to the scene but shortly before they arrived, at just after 6.30am, there was an explosion inside the property.

“A woman and a man have died at the address and we’re treating the explosion as suspicious.

“Three people, a man, a woman and a child, were taken to hospital to be treated for minor injuries.”