NEW LLANO - Local, state and federal law enforcement officers are investigating an incident that has prompted the evacuation of an apartment complex near a Louisiana Army post.

The Vernon Parish Sheriff's Office said in a Facebook post Wednesday that it is working with Fort Polk officials and the FBI regarding an unspecified incident in the parish.

Residents of the Mona Lisa Apartments in New Llano and the immediate surrounding area were evacuated as a precaution, the statement says. New Llano is about 8 miles north of the central Louisiana Army post.

The sheriff's office says the evacuation was ordered "due to the possibility that a hazardous material may have been involved."

A Louisiana State Police hazardous materials unit was headed to the area, but further details were not immediately available.

A base spokesman was not immediately available for comment.