Officers from the Nacogdoches Police Department are on the scene of a major accident in the southbound lanes of Northwest Loop 224 in Nacogdoches.

Two 18-wheelers were involved in the accident and one of those is overturned.

According to police, the southbound lanes are blocked completely and will be for some time.

The northbound lanes are open, but traffic is moving slowly.

Police are advising that drivers avoid the area completely, if possible. TXDOT is on the scene and figuring out a detour plan.