Man detained over blast which injured firefighters and police officers

A person is taken to an ambulance in front of a high-rise building in Ratingen, Germany (Rolf Vennenbernd/dpa via AP)

German police have detained a suspect in connection with an explosion at a residential building that injured 12 first responders on Thursday, a security official has said.

The interior minister of North Rhine-Westphalia state, Herbert Reul, said that 10 firefighters and two police officers were injured in the blast at a high-rise building in the town of Ratingen.