Elgin, SC (WLTX) - An overturned tractor-trailer blocked traffic on Interstate 20 in northeast Richland County for much of Monday afternoon.

The collision happened in the westbound lanes of the road at mile marker 87, which is near the White Pond Road exit close to Elgin. All lanes were currently blocked for over two hours, but by 7 p.m., lanes were reopening.

The highway patrol said there are injuries, but didn't specify how severe they may be.

The circumstances leading to the collision have not yet been made available.