A 28-year-old man was in critical condition after being shot six times Monday night in Philadelphia’s Frankford neighborhood, police said. The shooting happened around 10:23 p.m. in the 4800 block of Oxford Avenue, according to Philadelphia Police Chief Inspector Scott Small. The man was struck twice in the head and four times in the back. He was undergoing surgery at a hospital, Small said. Police said surveillance footage showed the shooter chasing the victim and firing at close range. No arrests had been made, and the investigation was continuing. The victim’s identity has not been released. Anyone with information can contact Philadelphia police at 215-686-TIPS (8477) or submit an anonymous tip through the department’s online form.