UPDATE | Pa. troopers investigating fatal crashes

MERCER, Pa. — Two teens were killed and two more were seriously injured after an SUV they were riding in about 6:50 p.m. was involved in an accident with tractor-trailers on Interstate 80 eastbound during a snow squall.

Pennsylvania State Police at Mercer said that weather was a factor in the crash. State police did not name the teens who were killed or injured, only that they were killed at the scene.

A crash report said both teens who suffered fatal injuries were wearing seat belts at the time of the crash, as were the two who were seriously injured.

According to the Mercer County 911 Center, there were multiple crashes along I-80 that kept Pennsylvania State Troopers busy Sunday evening.

In a crash Sunday morning in Springfield Township, Pa., unrelated to the crashes on I-80 that started about 6 p.m. Sunday, the driver, Kadi Shetter, 29, was traveling south on Perry Highway approaching Leesburg Grove City road when her vehicle went off the road and struck a tree.

Troopers said Kadi, who was not wearing a seat belt, was pronounced dead at the scene. The cause of the crash is under investigation.