[Los Angeles Times]

The New York Police Department is investigating whether some of its police officers were present when a pack of motorcyclists confronted an SUV driver last week in a case of road rage gone viral, a department spokesman told the Los Angeles Times on Monday.

The spokesman would not confirm media reports that as many as three off-duty officers were present during the Sept. 29 attack, in which one motorcyclist was apparently run over and bikers pulled the driver out of his SUV and assaulted him until a bystander came to the driver’s aid.

“What I can tell you is it’s under investigation by internal affairs,” said the spokesman, Sgt. Lee Jones, who declined to give any further details.

CBS News senior correspondent John Miller, a former New York deputy police commissioner, reported that one of the three off-duty officers thought to be accompanying the bikers was a detective working undercover who was possibly afraid to blow his cover to break up the attack.