Philadelphia police are reporting no new leads in the search for four men wanted in connection with the fatal beating of a man who had been trying to hail a cab after leaving a bar in the city's historic district.

Investigators say 23-year-old Kevin Kless had been yelling at a cab that was driving away early Saturday, a few blocks from the Liberty Bell. Police say three men got out of a car behind the cab and severely beat Kless, possibly thinking he was yelling at them. Kless died at a hospital several hours later.

Police are now looking for the three men and the driver of the car, believed to be a maroon sedan.

The city and the Fraternal Order of Police are offering $15,000 in reward money.