London, Ky. — More tornadoes plowed through the central U.S. on Monday, ripping apart buildings and knocking out power as people from Texas to Kentucky continued to clean up from days of severe weather that killed more than two dozen people and destroyed thousands of homes and buildings.

A deadly, tornado-spawning storm system that's pummeled large portions of the country for days was threatening the central U.S. into Monday night. The big picture: The National Weather Service confirmed at least four tornadoes in Oklahoma and Nebraska,

The National Weather Service is warning of still more days of dangerous weather conditions across the central U.S. The agency issued the forecast Monday after four days of tornadoes, thunderstorms