A Montgomery County woman died and a North Carolina truck driver was injured Saturday in a head-on collision in Loudoun County, police said.

Barbara C. Whitener, 27, of Olney, was driving a 2011 Chevrolet Silverado pickup truck north on Route 15 just before 8 a.m., when she crossed the center line about one mile south of Harmony Church Road, police said. Her pickup struck a southbound tractor-trailer at the driver’s side fuel tank. Whitener, who died at the scene, was not wearing a seatbelt, police said.

The tractor-trailer driver, Richard Poole of Zebulon, N.C., was treated for minor injuries at Lansdowne Hospital, police said.