State police at Frackville reported a multiple vehicle pileup occurred along Interstate 81 near the Tremont exit in Schuylkill County. Troopers said the crashes occurred during the period of 1 and 6 a.m. on Wednesday, Jan. 19.

A total of seven tractor trailer rigs and four passenger vehicles were involved in the accidents with 11 people injured.

The crashes forced the closure of the interstate for three and a half hours. Multiple fire companies, ambulances and fire police assisted troopers at the crash scenes.

Troopers said the roadway was very icy at the time.