GRAMERCY — A LaPlace teenager was killed Sunday in a one-vehicle wreck in St. James Parish, authorities said.

Shortly before 10 a.m. Sunday, Louisiana State Police Troopers began investigating a single vehicle fatality crash on U.S. 61 south of Interstate 10 in St. James Parish.

The crash took the life of 17-year-old Evan Simoneaux of LaPlace, State Police said.

The initial investigation by State Police revealed the crash occurred as Simoneaux was traveling northbound on U.S. 61 in a 2010 Ford Focus.

For unknown reasons, the vehicle veered off the right side of the roadway into the bayou. The vehicle became fully submerged with the driver still inside, according to authorities.

Simoneaux sustained fatal injuries as a result of the crash and was pronounced deceased at the scene by the St. James Parish Coroner’s Office.