US-WEATHER-TORNADO

A school zone speed limit sign is kept among the debris outside the Plaza Towers Elementary School after it was destroyed by a tornado that ripped through the area on May 22, 2013 in Moore, Oklahoma. Seven children died in the school during the tornado. As rescue efforts in Oklahoma wound down, residents turned to the daunting task of rebuilding a US heartland community shattered by a vast tornado that killed at least 24 people. The epic twister, two miles (three kilometers) across, flattened block after block of homes as it struck mid-afternoon on May 20, hurling cars through the air, downing power lines and setting off localized fires in a 45-minute rampage. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP via Getty Images)