Updated 12.15pm

Police investigating a stabbing that left four people wounded in the German city of Munich have arrested a suspect.

Authorities said on social media that none of the injuries are believed to be life-threatening.

The suspect - who was described as a man in his 40s - fled the scene on a black bike, prompting police to launch a manhunt.

People were urged to avoid the area while officers searched for the suspect.

It was later confirmed that a suspect had been arrested, with police saying it was uncertain if he was the culprit.

Officers say the motive for the incident is currently unclear.

We are searching for the offender with all police officers available. Until now we know nothing about the motivation. #Rosenheimerplatz

— Polizei München (@PolizeiMuenchen) October 21, 2017