The National Weather Service on Tuesday said four likely tornadoes and possibly more hit in northeastern Oklahoma and northwestern Arkansas.

An EF3 tornado hit Oklahoma City, destroying neighborhoods as roofs were ripped from homes. So far, nearly a dozen people have been hurt while thousands are without power. Heavy rains are still drenching the area, complicating recovery efforts.

At least 11 people were injured Sunday morning and about 100 homes were damaged or destroyed when multiple tornadoes swarmed the Oklahoma City area. Officials issued tornado warnings Sunday, including one for the University of Oklahoma's Norman campus.