LIVINGSTON – State Police say a Baton Rouge woman is dead after a crash involving an 18-wheeler on Interstate 12 in Livingston Parish Tuesday night.

Around 10 p.m. Tuesday, Troopers began investigating a two-car crash with serious injuries on I-12 eastbound, east of LA 63. Investigators say 35-year-old Cheryl Douglas was driving eastbound on I-12 when for unknown reasons crossed the median into the westbound lane, striking an 18-wheeler.

Douglas was not wearing a seatbelt and was ejected from her car. The 18-wheeler, driven by 38-year-old Daniel Mendoza, overturned and came to rest in the median. Mendoza was properly restrained and suffered moderate injuries.

Emergency responders transported Douglas to a local hospital where she later died Saturday, May 28.

Louisiana State Police say it is unknown whether impairment was a factor in the crash, but Troopers took toxicology samples from both drivers for analysis.