HALIFAX -- Police are searching for a man and woman after a handgun was brandished and a young woman was punched while riding a bus in Halifax.

Police say around 1:30 a.m. Tuesday, officers received a call about a weapon on a Metro Transit bus in the Wyse Road area of Dartmouth.

They say the suspects were arguing with four young women when the man pulled out a handgun and pointed it at two of the women.

Police say the woman who was with the man then punched one of the young women in the face as they left the bus.

There were no injuries.