Flames engulf Chicago train carriage as man tries to set himself on fire

Footage has emerged of flames engulfing a train carriage after a man doused in paint thinner attempted to set himself on fire.In CCTV pictures released this week by the Chicago Transport Authority, suspect David Ferguson, 28, is seen tussling with a railway worker at Argyle station in the north of the city.The employee is seen aiming a kick at a tin of flammable paint thinner being held by Mr Ferguson in an apparent attempt to knock it out of his hand.