http://abcnews.go.com/US/shooting-oak-creek-sikh-temple-milwaukee-oak-creek/story?id=16933779#.UB7D-aMn3IEA mass shooting has occurred at a Sikh temple in Oak Creek, Wisc., just outside Milwaukee.
At least four people have been reported injured and no suspect has been identified. Hospitals in the area were told to be ready for up to 20 shooting victims, according to police radio reports.
"An officer arrived and engaged a suspect. That officer was shot multiple times. He is expected to survive," said Brad Wentlandt, the police chief of Greenfield, Wisc., at a hastily-arranged briefing for news media.
"The officer exchanged fire with the shooter. That shooter was put down."
Some members of the temple are still inside the temple and are hiding, believing that a gunman may still be inside the building, according to ABC News affiliate WISN.
Wentlandt said, "We believe we have the situation contained here" at the temple. But he also said, "we do not know if there are other shooters at the scene."
He asked media outlets to stop broadcasting aerial footage from helicopters ont elevision, because of tactical operations that were ongoing at the scene.
According to local reports, a gunman walked into the church and opened fire around 10:34 a.m., shortly before a prayer service was scheduled to begin. On Sundays Sikh temples, called gurudwaras, serve a community meal at which anyone is welcome, including members of the public, as part of their community service.
Among those shot was the president of the temple, Satwant Singh Kaleka, who just last Sunday invited a state representative and the county district attorney to discuss a recent rise in violence against area Sikhs at their stores and businesses, according to the Milwaukee Journal Sentinel.
The Journal Sentinel said a SWAT team entered the temple after the shooting and evacuated the uninjured members.
According to information broadcast over police radio, a witness to the shooting told law enforcement the shooter was a white male, bald, with a heavy build. He was wearing a sleeveless T-shirt, according to Oak Creek Patch. He was last seen with two handguns.
A spokeswoman for Froedtert Hospital, the main trauma center in the Milwaukee area, said that three men were taken there and the hospital was ready to receive more, according to the Associated Press.
Federal agents from the Alcohol, Tobacco, and Firearms bureau are on their way to the scene of the shooting, two government officials told ABC News.
There are more than a dozen ambulances parked outside the temple, and police moved media and a handful of bystanders to an area near the temple.
Amardeep Kaleka, a member of the temple, told WISN his father was inside during the shooting and his mother was hiding inside, believing the gunman was still inside. Kaleka said that a priest called for emergency help after the shooting.
Oak Creek police have not released any information yet on the shooting
