The accident is reported to involve a tractor trailer, a car, and a truck.
Interstate 81 is being closed Northbound at the Pine Grove Exit (Exit 100). Traffic is being diverted through Pine Grove.
Traffic Southbound is reported to be stopped as well between Ravine and backing up towards Tower City.
UPDATE: 2:40PM - Southbound lanes should begin moving shortly.
UPDATE: 4:35PM - Northbound lanes now open