A North Patchogue man was charged Tuesday with hitting and seriously injuring a bicyclist, then fleeing, Suffolk police said.

Fifth Squad detectives arrested Joseph Iorio, 19, near his home about 3:30 p.m. nine hours after the crash. The vehicle suspected to be involved in the crash, a 2006 Honda, was impounded, police said.

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Police said the victim, who has not been identified, was riding his bicycle westbound on the eastbound shoulder in front of 344 Jamaica Ave. in Medford when he was struck by Iorio, who was traveling eastbound shortly before 6:30 a.m. Police said Iorio then fled.

The bicyclist was taken to Brookhaven Memorial Hospital in East Patchogue, where he is listed in serious condition.

Iorio was charged with leaving the scene of accident involving serious physical injury. He will be held overnight at the Fifth Precinct and is scheduled to be arraigned at First District Court in Central Islip on Wednesday.

With Ellen Yan