CAUTION! Viewer Discretion ADVISED. This video shows an entrant being badly burned as he enters a 6,000 gallon underground gasoline storage tank. Heat from a halogen work light that was lowered into the tank ignited gasoline vapors. The worker sustained a head injury and severe burns to several areas of his body. He was taken by ambulance to Mercy Hospital St. Louis in Creve Coeur. A hospital spokeswoman said he was in satisfactory condition with 2nd and 3rd degree burns and other injuries. CLICK HERE for news report.