Tornadoes cut a swath across parts of Tennessee and Kentucky on Friday, killing at least four people, injuring scores more and flattening houses, authorities said.

At least four twisters touched down and between 15 and 18 were reported in western and central Tennessee, authorities there said.A man was crushed between two cars in an auto lot in Selmer, 80 miles east of Memphis, when a tornado swept across Highway 45 at the south end of the McNairy County town, said Sheriff Eric O. Bell of neighboring Chester County. The victim apparently was a customer at the lot, Bell said.

David Walker, a spokesman of the Tennessee Emergency Management Agency, said the tornado killed another person in McNairy County, but he had no details.

At least 30 people were treated at the hospital in Selmer, and dozens more were transported to hospitals outside the county, Bell said.

In western Kentucky, an 11-year-old boy was killed in Olmstead, a town of 90 about 30 miles southwest of Bowling Green, authorities said.

Police Capt. Rawlie Greer in nearby Russellville said at least six people were injured in Olmstead and Auburn, a nearby town of about 1,000 in Logan County.

"Right now there are some people unaccounted for," Greer said.

Parts of Selmer were devastated, Bell said.

"There are torn down buildings and wiped out cars lots with the cars all jumbled around," Bell said. "It's terrible. Everybody was trying to find their people.