Dallas, Rabi'I 16, 1437, Dec 27, 2015, SPA -- Tornadoes swept through the Dallas area, leaving substantial damage and at least 11 people dead either from the storm or related traffic accidents, in the latest of a succession of freakish winter weather events across the country. The Texas tornadoes that touched down after dark on Saturday followed days of tumultuous weather in the Southeast including unusual winter tornadoes that left 18 people dead, AP reported. National Weather Service Meteorologist Anthony Bain in Fort Worth said several tornadoes touched down in the Dallas area, although the full extent of damage would not be known until daylight Sunday. The storms left homes had roofs blown away, vehicles mangled or turned upside down, power lines down, natural gas lines burst, trees toppled and debris strewn across neighborhoods. The damage stretched over about a 40-mile (64-kilometer)-long area from 20 miles (32 kilometers) south of Dallas to northeast of the city. --SPA 20:24 LOCAL TIME 17:24 GMT www.spa.gov.sa/w