Old Lyme — Interstate 95 northbound near Exit 70 was closed Thursday morning due to an overturned tractor-trailer.

The rig, which was carrying paper goods, rolled over about 7:15 a.m., according to Connecticut State Policeat Troop F.

It was not clear what caused the crash, but at least one other vehicle was involved, police said.

I-95 north was closed to traffic between exits 70 and 71. The road reopened by 10 a.m., police said.

No injuries were reported.