A Suffolk County police officer at the scene Sunday in...

A Suffolk County police officer at the scene Sunday in Stony Brook where a Medford man riding a motorcycle was killed in a crash. Credit: Newsday/James Carbone

A Medford man riding a motorcycle was killed Sunday morning after he crashed near the entrance to Stony Brook University Hospital, the Suffolk County Police Department said.

Airton Santos-Alexandre, 26, was pronounced dead at the scene after the crash about 11:10 a.m., police said.

The 2015 Suzuki GSX-R750 motorcycle was traveling south on Nicolls Road in Stony Brook when it struck a guardrail on the right shoulder, according to a police department news release.

Police shut down southbound lanes between the two entrances to the hospital until about 3:10 p.m.

Detectives from the Sixth Precinct are investigating the crash, police said.

More coverage: Every 7 minutes on average a traffic crash causing death, injury or significant property damage happens on Long Island. A Newsday investigation found that traffic crashes killed more than 2,100 people between 2014 and 2023 and seriously injured more than 16,000 people.

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Veterans caring for the fallen ... LI Ducks usher ... Get the latest news and more great videos at NewsdayTV

Get the latest news and more great videos at NewsdayTV Credit: Newsday

Veterans caring for the fallen ... LI Ducks usher ... Get the latest news and more great videos at NewsdayTV