The Livingston Parish Sheriff's Office reported an 18-wheeler is in the ditch on Arnold Road at Linder Road and leaking oil.
Witnesses said the tanker truck is leaking crude oil.
Officials said Arnold Road is closed. Drivers are urged to use care in the area.
A hazardous materials crew with the Livingston Parish Office of Homeland Security and Emergency Preparedness (LPOHSEP) is on the scene handling the leak.
It is unknown how long it will take to get the scene cleared.
There have not been any reports of injuries.