A man wounded several people with a knife in the southern German city of Munich on Saturday, police and the fire department said. A suspect was arrested a few hours later, and authorities were working to determine whether he was the assailant.
None of the injuries were life-threatening, police said, adding that the attacker's motive remained unclear.
They urged people at the Rosenheimer Platz area, located close to the German city's downtown, to remain at home as they had received conflicting information about which way the attacker had gone.
Police described the suspect as a corpulent, unshaven man in his 40s who had fled the scene on a black bicycle.
They said he was wearing gray pants and a running jacket. He was also carrying a backpack and a camping bed roll.
About three hours after the stabbing, police arrested a man matching that description who initially tried to evade officers.
"We can't yet confirm whether he is the perpetrator," police spokesman Marcus da Gloria Martins said.