Gwinnett County police are investigating after a neighborhood basketball game erupted in gunfire Sunday afternoon and left a 17-year-old Lawrenceville boy dead.

Timothy Buchanan was found by police on the basketball court in the Bramlett Shoals subdivision off New Hope Road at about 4 p.m. He had been shot at least once and was pronounced dead at the scene, according to police.

Neighbors told Channel 2 Action News there were several teenagers playing a pickup game at the end of Mariray Court before the shots rang out. The shooter was believed to have immediately left the scene in a vehicle.

“It ran over a stop sign, a mailbox and it’s windshield was busted out,” neighbor Jana Norton told Channel 2. “I mean he ruined his car leaving.”

Gwinnett police have not released a description of the vehicle or the suspect, but spokesperson Cpl. William Wolfe said Sunday there did not appear “to be an elevated danger to the public.”

Investigators have not determined what motivated the killing and have not made any arrests. It was not clear if Buchanan lived in the neighborhood.

Anyone with information is asked to contact detectives at 770-513-5300. Tipsters can remain anonymous, and be eligible for rewards of up to $2,000, by contacting Crime Stoppers Atlanta at 404-577-8477, texting information to 274637 or visiting the Crime Stoppers website.

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