The Beaver County Police Department said Samantha Schermanhorn and Kaylie George were flown to a hospital where they were listed in fair condition, WTAE-TV, Pittsburgh, reported.
Nicole and Nicholas Beck, who are cousins of Schermanhorn, said their 19-year-old brother had stopped at an intersection before making a turn and hitting the two sunbathing teens.
The Becks said their brother was questioned by authorities, but it was just an accident.
Attkisson leaves CBS News, reportedly over network's 'liberal bias'
McPhee, Cokas 'working on their marriage' after affair