The incident started after the passenger, who boarded the subway before the Girard Station stop, shouted to fellow passengers that he was holding a gun.
The Officer was radioed and was dispatched to the Fairmount Station stop. And when the train arrived a confrontation quickly ensued.
As the attacker started to get the best of Officer, he called out to the onlookers for help. Two came to his aid.
Fellow officers arrived shortly after to help put the attacker in handcuffs.
The attacker has not been identified, but he is being treated for minor injuries at Hahnemann University Hospital.
Video from March.
