Suspect detained after explosion injures first responders at German apartment building.

Police and firefighters were injured, some seriously, in an explosion in Ratingen, Germany. The explosion occurred in a flat where officers had responded to reports of a person in distress. A man used a device to set off an explosion, and police arrested a 57-year-old man. A body was found in the apartment, believed to be the arrested man's mother. Ten firefighters and two police officers were injured, some in a potentially life-threatening condition. The cause of the explosion is unclear, and a targeted attack cannot be ruled out.