WILMINGTON (WPVI) -- Delaware State Police say a man fleeing the scene of a prior accident crashed head-on with another vehicle, killing both drivers.



It happened around 2:30 p.m. Saturday near Marsh Road and Chestnut Street in Wilmington.



Authorities say 53-year-old Stephen Rementer of Garnet Valley, driving an Oldmobile Cutlass, had just left a different accident as he sped across the center line.



The vehicle struck a cement wall and a guardrail, before it ended up in the path of a Chevy Impala.



Police say the driver of the Impala, 68-year-old John A. Hawrylak of Wilmington, pressed on his brakes and skidded, but was unable to avoid the Oldsmobile.



The vehicles collided head-on.



Both drivers, who authorities say were not wearing seatbelts, were taken to Christiana Medical Center where they were pronounced dead.



The prior accident involving Rementer happened a few minutes before on nearby Naamans Road.



Police say Rementer's vehicle struck the back of a Chevy Malibu that was stopped at a traffic light.



According to investigators, Rementer got out of his car and began arguing with the female driver of the Malibu.



As she called 911, that's when police say Rementer got into his car and sped off, causing the fatal accident.



A German Shepherd named Isabel was also in Rementer's vehicle and was transported by troopers to Veterinary Specialty Center of Delaware on Churchmans Road, where she is currently under their care for undetermined injuries.



Toxicology results are pending.



Police continue to investigate.