Local media reported that at least six people were killed in a shooting incident targeting a church in the German city of Hamburg.And the city police stated that the shooting took place in a church located on Delbogue Street in the Gross Borstel area.Local media said the site of the attack was the center of Jehovah's Witnesses.She added that ambulances went to the scene, while German police are searching for the perpetrators of the attack.

Police said a gunman was believed to have been killed, and it was not clear if the attacker was one of the six reported fatalities.

She added, "We have no indications that the attacker escaped."A spokesman at the scene said investigators had "indications that the attacker may have been inside the building and may have been among the dead".

"There is no reliable information about the motives for the crime," the police said in a statement on Twitter, and appealed to the public not to spread assumptions or rumours.A warning message from the federal authority was sent on the "NINAwarn" app at around 21:00 local time (20:00 GMT) telling citizens that "one or more unidentified perpetrators have shot people in a church".Nearby residents have been asked not to leave their homes during the ongoing security operation