A rescue worker looks for victims in the Moore Hospital parking lot after being hit by a tornado that destroyed buildings and overturned cars in Moore, Oklahoma, near Oklahoma City, May 20, 2013. A huge tornado with winds of up to 200 miles per hour (320 kph) devastated the Oklahoma City suburb of Moore on Monday, ripping up at least two elementary schools and a hospital and leaving a wake of tangled wreckage. At least four people were killed, KFOR television said, citing a reporter’s eyewitness account, and hospitals said dozens of people were injured. REUTERS/Gene Blevins (UNITED STATES – Tags: DISASTER ENVIRONMENT)