Two men have been injured after an explosion at a house, which sent its roof flying into the middle of the road.

Dramatic images show the first floor and roof of the property destroyed by the blast in Silk Milk Drive, Leeds.

Gas engineer Allen Hart had been working further up the street fitting a boiler when he heard a “really loud bang”, and described the damage as “like a war zone”.

West Yorkshire police said officers were called at around 2.50pm on Friday to reports of an explosion and that emergency services remained at the scene.

“Two men have been taken to hospital where they are being treated for injuries not believed to be life threatening,” a spokeswoman said, adding that the incident was not being treated as terrorism related.

“Road closures are in place and a neighbouring property has been evacuated due to structural damage. Enquiries are ongoing.”

Har said the explosion caused the property he was in to shake and said the noise prompted him to go and see what had happened.

Describing the scene, he said: “It was so shocking, it was horrendous to see – the tiles from the roof had blown up in the air and had come down and stuck into the grass. All the roof was in the road, when the fire brigade came they had to drive over it. It was like a war zone.”

He said he saw an injured person lying down on the grass and he could see water “squirting out” the house. He smelt gas so he called the gas emergency services.

Having worked as a gas engineer for 28 years Hart said he was totally shocked, adding: “I have never seen seen or experienced anything like that before.”