Four people died when a plane crash in the woods behind Ouachita Correctional Center.
The News-Star reports investigators from the National Transportation Safety Board will be on the scene Friday to begin collecting evidence and witness testimony for their initial investigation.
NTSB spokesman Terry Williams says a Beechcraft Bonanza crashed Thursday afternoon about four miles south of the Monroe Regional Airport.
Officials have not released the names of the victims.
The airplane was owned by Central Flying Service, Inc. of Little Rock, Ark. It was arriving at Monroe from Beaumont, Texas.
William said the investigation could take nine months to one year to complete.