PEARL RIVER - According to Louisiana State Police, a deadly Saturday afternoon crash in St. Tammany Parish killed one person and seriously injured a second.

Police say the wreck occurred shortly before 3 p.m., on I-59, just south of the Mississippi state line.

According to authorities, an initial investigation revealed that the driver and a passenger were traveling southbound along I-59 in a 2001 Mercury Grand Marquis when the Grand Marquis veered into the right lane and began to rotate before traveling off-road.

After this, the vehicle careened down a grass embankment and hit a tree.

The driver was wearing a seatbelt, but sustained fatal injuries and was pronounced deceased at the scene of the crash.

According to authorities, the passenger was not wearing a seatbelt, and was seriously wounded in the incident.

The tragic crash remains under investigation, and officials add that at this time, the name of the deceased driver is being withheld to allow for official identification and notification to the deceased's next of kin.