A driver was killed Tuesday in Berlin after a bomb exploded either in or on his car while he was driving through the German capital's western Charlottenburg district, police said.
The homicide division of Berlin's police force has taken over the investigation, police said. Investigators - supported by forensics officers and explosives experts - were at the scene attempting to establish the details of the case.
The explosion in or on a silver station wagon occurred at about 0700 GMT at a busy intersection heading into the city centre. The car overturned as a result of the blast and then rammed into a parked vehicle.
"There was an extremely loud bang and you could feel a tremor from a kilometre away," a witness told Berlin's BZ newspaper.
No other people were injured in the accident, police said. They were unable to give details about the identity of the driver.
Berlin police tweeted video footage of the scene of the explosion as officers checked to see if there were any further explosives. In the clip, an officer warns nearby residents to stay away from their windows and keep doors closed.
Police later concluded that there were no further explosive devices at the scene and told residents they could reopen their windows and doors.