Highway Patrol trooper Betsey Randolph said officers found the bodies of the woman and her daughter near a vehicle along Interstate 40 between El Reno and Yukon.
The tornado hit during evening rush hour, smashing vehicles along a major highway near the city, with reports of several motorists injured and others missing.
The Oklahoma medical examiner's office confirmed five people had been killed, and 50 others hurt - five of them critically.
http://news.sky.com/story/1098028/oklahoma-city-tornado-five-killed-in-new-storm
