An off-duty Baltimore, Maryland, police officer died late Saturday night after being attacked during an argument over a parking space.
He was out celebrating his 38th birthday, police spokesman Anthony Guglielmi said.
"One suspect pulled out a blunt object and bludgeoned the officer," Guglielmi said. "Some individuals are in custody being questioned who were found at a nearby nightclub."
The off-duty detective, whose name has not yet been released, was rushed to Johns Hopkins Bayview Medical Center where he later died from his injuries.