A collision involving a pickup truck that became airborne killed an 18-year-old Baltimore County woman and left a Woodbine man in serious condition late Wednesday afternoon on Interstate 70 west of Mount Airy, state police said.

Andrea Kelly Simonson, of the 1000 block of Homberg Ave. in Middle River was pronounced dead at the scene. Police said the undercarriage of the 1987 Toyota pickup, driven by David Grant Hollinger, 31, of Woodbine, struck her 1998 Oldsmobile.

State police said the truck was eastbound on I-70 and changing lanes when it collided with a Ford Crown Victoria driven by Joseph Grimes, 52, of Ellicott City, who was not injured. The truck careered across the median, became airborne and struck the the Oldsmobile. Hollinger was in stable condition at Maryland Shock Trauma Center.