A 58-year-old Fresno man escaping police died Monday after driving a silver Mercedes sedan at over 100 mph and hurtling it over the San Joaquin River, according to multiple news reports.

The Fresno County's coroner's office identified the man as David Callahan.

The Fresno Bee reported the car traveled some 330 feet across the river, leaving officers stunned.

"In my 20 years, I've never seen a vehicle travel close to that distance," CHP spokesperson Mike Salas told ABC News.

The police pursuit began when officers said they noticed a swerving car, with the driver refusing to pull over. Initially, the chase was slow with Callahan driving at 30 mph, but then he sped off, police say.

ALSO: Police alert public to sexual predator known as 'Pirate' living in Northern California town

Callahan crossed the river where North Dickenson Avenue hits a dead-end at West Herndon Avenue and a river bluff.

The incident is under investigation. Salas told ABC30 that drugs may have been a factor.

"They were able to find that there were some issues going on at the house that may have contributed to him leaving erratically from his residence," Salas said.

Amy Graff is a digital editor with SFGATE. Email her: agraff@sfgate.com.