The fatalities occurred in a crash involving more than 20 vehicles and tractor trailers on westbound Interstate 80 between Clintonville and Emlenton at about 3 p.m. ET, the Venango County Police Department told NBC News. There were at least six injuries. The Pittsburgh Post-Gazette had a lower death toll -- two -- and said whiteout conditions contributed to the accident.
U.S. News - Huge pileups on Pennsylvania interstates leave at least three dead