A Lindenhurst man was killed early Saturday and a female passenger was injured when he lost control of his car in Brightwaters, striking a utility pole and then a tree, Suffolk County police said.

John A. Koch III, 25, of North Fulton Avenue, was pronounced dead at Southside Hospital in Bay Shore.

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The passenger was also taken to Southside Hospital for injuries that were not life-threatening.

The crash occurred about 1:45 a.m. when Koch, driving a 2001 Honda CRV westbound on Union Boulevard, struck a median and left the roadway, police said. The car then hit a utility pole and crashed into a tree on Union between Windsor Court and Plymouth Avenue, authorities said.

The vehicle was impounded for a safety check, and the investigation is continuing.

Anyone with information about the crash is asked to call the Third Squad at 631-854-8352 or Crime Stoppers at 800-220-TIPS. All calls will be kept confidential.