- A mass shooting at a Jehovah's Witness centre in Hamburg killed several people.
- The gunman was among the dead, police said.
- Jehovah's Witnesses had gathered for a weekly Bible study meeting.
Several people have been killed in a shooting at a Jehovah's Witness centre in Hamburg, with the gunman believed to be among the dead, German police said on Thursday.
Police have not given a death toll, but multiple local media outlets reported that the shooting had left seven dead and eight seriously injured.
The first emergency calls were made around 20:15 GMT after shots rang out at the building in the city's northern district of Gross Borstel, a police spokesperson at the scene said.
Police tweeted that "several people were seriously injured, some even fatally" in the incident.
"At the moment there is no reliable information on the motive of the crime," police said, urging people not to speculate.
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An alarm for "extreme danger" in the area had been sounded using a catastrophe warning app, but Germany's Federal Office for Civil Protection lifted it shortly after 03:00 local time.
Munich police tweeted early on Friday:
The port city's mayor, Peter Tschentscher, expressed shock at the shooting on Twitter.
Sending his sympathies to the victims' families, he said emergency services were doing their utmost to clarify the situation.
In the non-descript, three-storey building, police said an event had been taking place on Thursday evening.
Jehovah's Witnesses had gathered for a weekly Bible study meeting, according to local daily Hamburger Abendblatt.
There are about 175 000 people in Germany, including 3 800 in Hamburg, who are Jehovah's Witnesses, a US Christian movement set up in the late 19th century that preaches non-violence and is known for door-to-door evangelism.
The first officers at the scene found several lifeless bodies and seriously wounded people, police said.
Hamburger Abendblatt reported that 17 unhurt people, who had been at the event, were being attended to by the fire brigade.
Officers heard a shot in the "upper part of the building" before finding a body in the area where it rang out, police said.
"We have no indications of a perpetrator on the run," said the police spokesperson.
Instead, officers have "indications that a perpetrator may have been in the building and may be even among the dead".
The spokesperson added that the person uncovered in the upper part of the building was "possibly" the perpetrator.
"We have found a lifeless person in a community centre in [Gross Borstel] which we assume could be a perpetrator," Munich police tweeted early Friday morning.
Police said in a separate tweet:
Germany has been rocked by several attacks in recent years, both by jihadists and far-right extremists.
Among the deadliest committed by Islamist extremists was a truck rampage at a Berlin Christmas market in December 2016 that killed 12 people.
The Tunisian attacker, a failed asylum seeker, was a supporter of the Islamic State jihadist group.
Europe's most populous nation remains a target for jihadist groups in particular because of its participation in the anti-Islamic State coalition in Iraq and Syria.
Between 2013 and 2021, the number of Islamists considered dangerous in the country had multiplied by five to 615, according to interior ministry data.
But Germany has also been hit by several far-right assaults in recent years, sparking accusations that the government was not doing enough to stamp out neo-Nazi violence.
In February 2020, a far-right extremist shot dead 10 people and wounded five others in the central German city of Hanau.
And in 2019, two people were killed after a neo-Nazi tried to storm a synagogue in Halle on the Jewish holiday of Yom Kippur.