COLUMBIA COUNTY, Fla. -

A Lake City man was killed and several members of his family injured Saturday night in a single-vehicle crash in the 1800 block of U.S. Highway 90.

According to Florida Highway Patrol investigators, 47-year-old Virendra Patel was driving his Jeep when he suffered some type of medical emergency, causing him to suddenly swerve across both westbound and eastbound lanes and off the highway, where the SUV then ran into a fence and overturned.

Patel was transported to the Lake City Medical Center in critical condition, where he later died.

Five other people in Patel's Jeep were also hurt and were transported to local hospitals. The most serious injury -- to a passenger who was ejected during the rollover -- was later flown to Shands Medical Center at the University of Florida in Gainesville, where she was listed in serious condition.

The FHP is still investigating the cause of the wreck.