Four people have been injured after a stabbing on a bus in Hamburg, Germany. At around 5:30pm on Tuesday (June 17), an attempted robbery on a public bus in the German city of Hamburg escalated and resulted in a stabbing.

Police have said that four people have been injured, with one victim taken to hospital with a stab wound to his forearm. Three other people suffered minor injuries from kicks and punches. An investigation is underway.

THIS IS A LIVE BLOG. SCROLL DOWN FOR THE LATEST.