OAKLAND -- An 18-year-old man fatally shot Thursday afternoon in a gunbattle outside an AC Transit bus in East Oakland was identified by police Friday as Marcellus Perry.

Because the investigation is ongoing and additional people need to be interviewed, investigators provided scant details in the case.

Officer Brad Baker did say "there is a high possibility the shooting was gang related."

Police did say Perry, of Oakland, was the only person shot and there was no second victim as earlier reports stated. The bus was hit by gunfire but no passengers were injured.

Baker said the shooting resulted from a confrontation between people on the bus and another group outside.

When the bus stopped at 77th and Bancroft avenues the group onboard got off and the confrontation escalated, resulting in an exchange of gunfire, he said.

Police would not say if Perry was on the bus or was one of those outside and would not say if he was involved in the shooting or if he was associated with a gang. Perry was driven by others to 96th Avenue and Sunnyside Street where he was taken by ambulance to a hospital, where he died.

Police would not say if any suspects have been identified. Up to $10,000 in reward money is being offered for information leading to arrests in the case. Those with information may call police at 510-238-3821 or Crime Stoppers of Oakland at 510-777-8572.