As reported on BBC News today, four builders have been injured in an explosion at a police station in Croydon, South London.

One of the builders remains in a critical condition with serious burns after the explosion took place in the basement of Croydon Police Station – the local media has reported. The four injured builders are understood to be contractors who have been carrying out work at the premises.

Health and safety officials are investigation the cause of the explosion which still remains unknown. Police officials have confirmed they are reviewing the case as a “non-terroristic” incident.

A police spokesman for Croydon Police Station said in a statement that people from the building were evacuated whilst the police force remained “fully operational”. However, they were unable to specify what building work was taking place involving the contractors.

What is your reaction to the incident taken place at Croydon Police Station leaving four builders with serious injuries? What do you think might be the cause for the explosion?  Share your thoughts be leaving a comment below: