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 <br />Police are hunting a knifeman following a stabbing in Munich's central square <br />The attack happened near the Rosenheimer station, five thought to be injured <br />Police are urging locals to remain indoors while the manhunt takes place <br />The attacker has been described as roughly 40-years-old wearing a green jacket <br />One suspect has been arrested, police have said it's unclear if he's the offender
