OAK CREEK, Wisc. - Police searched the apartment early on Monday of a gunman who killed six people at a Sikh temple in southern Wisconsin, looking for clues to his motive.
A policeman called to the scene shot dead the gunman before he could fire on even more worshippers as they prepared for Sunday services at the temple in the suburb of Oak Creek, south of Milwaukee.
Three other people were in hospital with grave injuries, including another policeman who had responded to the scene.
Authorities said they were treating the attack as an act of domestic terrorism.
The identity of the tall, bald, white suspect in his 40s was not immediately released. The names of the victims also were not made public pending notification of relatives, although members said the president of the congregation and a priest were among the victims.
CNN, citing a law enforcement source involved in the investigation, said the gunman was an Army veteran.
Authorities said the gunman had used a 9 mm semi-automatic handgun, which was recovered at the scene. They were trying to track the origin of the weapon.