The crash took place in Copiague around 6:20 p.m., Monday, Jan. 30 at the intersection of Dixon Avenue with Volta Street.
According to Suffolk County Police, Isaac Flores, age 29, of Long Island City, was driving a 2015 Hyundai Sonata westbound on Dixon Avenue when the vehicle struck a man on a bicycle who rode across his lane of traffic at the intersection of Volta Street.
The bicyclist, Alexis Espinal-Cepeda, age 40, of Copiague, was transported to Good Samaritan University Hospital in West Islip for treatment of serious injuries.
Flores was not injured, police said.
The Hyundai was impounded for a safety check.
Detectives are asking anyone with information on the crash to contact the First Squad at 631-854-8152.
Click here to follow Daily Voice Brentwood and receive free news updates.