CANBERRA, Australia (AP) — Police in Australia set off a panic when they locked down a Melbourne train station after a street entertainer’s instrument was mistaken for a rifle. Commuters described panic at Melbourne’s Flagstaff Station when police in body armor carrying assault rifles stopped a train on Thursday during morning rush hour. Police say a passenger reported busker Will Austin behaving suspiciously on a train as he performed breathing exercises in preparation for playing his indigenous didgeridoo wind instrument, which he carried in a bag mistakenly described to police as a rifle case. Austin says he was stopped by police after he got off the train at the station. Police say no firearm was found and the train was allowed to proceed.