Fire Crew at Gas Explosion Scene in Gateshead

In Gateshead, police were called to a property due to a reported gas smell. Upon entering, an explosion occurred, injuring three police officers and a gas worker. They were taken to the RVI hospital, but their conditions are not yet known.

What prompted the police to be called to the property in Gateshead?

What was reported by someone when they entered the property?

What happened at the property after the police arrived?

How many individuals were injured in the explosion?

What is known about the condition of the injured individuals?