A 2-mile-wide (3-km-wide) tornado tore through the Oklahoma City suburb of Moore on Monday, killing at least 51 people including 20 children, destroying entire tracts of homes and trapping two dozen school children beneath rubble. Rescue teams raced against the setting sun and worked into the darkness in search of survivors as the dangerous storm system threatened several southern Plains states with more twisters. Area hospitals reported at least 230 people injured, including at least 45 children.