A security guard of Orange Line Metro Train in Lahore was beaten to death by a passenger on Tuesday morning, reported 24NewsHD TV channel.
The murder took place at the Gowalmandi station when the guard refrained the passenger from entering the ladies cabin in the train.
The Gowalmandi police have arrested the accused who has been identified as Hamza.
The police have registered a case against the accused and sent the body to a hospital for post-mortem.
Reporter Abid Chaudhry