A tractor trailer rollover snarled traffic on I-81 in Schuylkill County Sunday afternoon.

Crews at the scene say the tractor trailer rolled over while turning onto the ramp for exit 137 in Kline Township at around 1:30 p.m.

The trailer rolled onto its side, landing on top of the center barrier. As a result, both the on and off ramps were closed at that interchange.

No one was injured.

The cause of the crash is under investigation by state police.