Helicopter hovers over area of multiple stabbing attack in Munich. BREAKING NEWS: German police warn 'volatile' attacker is on the run in Munich after stabbing in central square as residents are told to stay in their homes
Police are hunting a knifeman following a stabbing in Munich's central square
The attack happened near the Rosenheimer station, five thought to be injured
Police are urging locals to remain indoors while the manhunt takes place
The attacker has been described as roughly 40-years-old wearing a green jacket
One suspect has been arrested, police have said it's unclear if he's the offender
