SPRING, Texas —  A small plane struck power lines and crashed into two cars as it tried to land Sunday, killing two aboard the aircraft and injuring one person in a car, authorities said.

The plane was headed to David Wayne Hooks Airport (search), just northeast of Houston, said Roland Herwig, a spokesman for the Federal Aviation Administration (search).

Texas Department of Public Safety (search) spokesman Tom Vinger said the two people on the plane were a man and a boy. Their names and ages were not immediately available.

KTRK-TV in Houston reported that a woman in the car was treated for minor injuries.

The pilot was practicing landings, said Lauren Peduzzi, a spokeswoman for the National Transportation Safety Board. Conditions were foggy at the time of the crash, Vinger said, but he didn't know whether it was a factor.

On Saturday, a small jet crashed shortly after takeoff at Hobby Airport (search), killing both people on board.