Eight people have been hurt in an attack on a bus in the northern German city of Luebeck. The motive is unclear.
Local media reported that a suspected had attacked passengers with a knife.
Luebeck police were not immediately available for comment.
"The passengers jumped out of the bus and screamed", an eyewitness told LN.
Officials originally said 14 people had been injured but later reduced the number.
She added the motive is "still open" and "we are investigating in all directions". "We can not now rule anything out".
The police added that a backpack was found in the bus from which smoke was appearing.
Discoveries boost Jupiter’s retinue to 79 moons - including a wrong-way oddball
Sheppard said Jupiter and Saturn may actually have a similar number of moons, with some of Saturn's smaller ones not yet detected. Nine of the new moons are in the retrograde group, a distant bunch of moons that rotate in the opposite direction of Juipter.
A spokeswoman for the Luebeck prosecutor's office said the 34-year-old suspect was born in Iran but that he was a longtime Luebeck resident with German citizenship. However, he was promptly apprehended by a nearby police patrol. It was awful. Then the injured were taken away. "The perpetrator had a kitchen knife".
A police auto that happened to be nearby quickly reached the scene in Kuecknitz district, allowing officers to detain the perpetrator, reports said.
He said authorities were still trying to determine the circumstances of the attack.
"We ask for your understanding that we can not provide any information about the identity of the suspect at the moment", the police added on Twitter.
Police in the city, in the northern state of Schleswig-Holstein, said a major police operation was under way.
Germany had long warned of the threat of more violence after several attacks claimed by ISIS, the bloodiest of which was a truck rampage through a Berlin Christmas market in December 2016 that left 12 people dead.