Police in chemical suits surround bus after man threatens passengers with substance

A man has been arrested after allegedly threatening a London bus driver and passengers with an unknown substance, sparking a three-hour stand-off with police. The Metropolitan Police said a man in his 40s boarded the 109 bus in Brixton on Sunday and was confronted by other passengers after he started smoking. He began to threaten them with an “unknown substance” while the bus was travelling through Thornton Heath, with the police called shortly after . Pictures showed officers dressed in chemical suits storming the bus, while passengers and the driver immediately left the vehicle once threats had been made. It was later confirmed that the substance was not corrosive and the man was arrested shortly before midnight after being tasered. Watch more on Independent TV: Click here to subscribe to The Independent: About The Independent: Making Change Happen. The Independ