CARLISLE, Pa. – A road trip by a college women’s lacrosse team came to a horrifying end Saturday when the team bus veered off the Pennsylvania Turnpike and crashed into a tree, killing a pregnant coach, her unborn child and the driver and injuring numerous others.

Seton Hill University team players and coaches were among the 23 people aboard when the bus crashed just before 9 a.m. No other vehicle was involved, and police couldn’t immediately say what caused the crash.

Coach Kristina Quigley, 30, of Greensburg, was flown to a hospital but died there of her injuries, Cumberland County authorities said. Quigley was about six months pregnant and her unborn child didn’t survive, authorities said.