Shocking surveillance footage shows a man setting fire to a petrol station - with the clerk still inside - using a bin full of flammable liquid.<br /><br />“The gas station clerk was transported to a local hospital, where he was treated for 1st-degree burns,” police said.<br /><br />Surveillance video released by police shows the suspect dumping a bin full of liquid inside the Sunoco gas station on the 19300 block of West 7 Mile Road, Detroit Michigan, USA, shortly before 3 a.m. Tuesday. <br /><br />The suspect has a blowtorch in his hand, and appears to speak to the clerk and backs out the door as he lights the liquid with the blowtorch.<br /><br />Police said the incident is “actively being investigated” and one suspect was in custody.