KANSAS CITY, Mo. – Shaken residents spent New Year's Day sifting through the wreckage wrought by tornadoes that touched down in several states on the last day of 2010, killing seven people and injuring dozens of others.

Six people — three in Missouri and three in Arkansas — died Friday as tornadoes fueled by unusually warm air pummeled the South and Midwest. A seventh person who was injured Friday in Missouri died Saturday, said Bruce Southard, the chief of the Rolla Rural Fire Department.

The woman, identified by Phelps County Emergency Management as 74-year-old Ethel Price, was entertaining a friend, Alice Cox, 69, of Belle, Mo., in her trailer when the twister hit.

Southard said nothing was left of the trailer except for the frame, and that the twister scattered debris 40 to 50 yards from where the trailer was sitting. The women were found under a pile of debris, and Cox died Friday, Southard said.

"It's like you set a bomb off in it," Southard said. "It just annihilated it."