Police are questioning an 18-year-old man suspected of using a sawed-off shotgun to rob three people at the Sheridan stop of the CTA Red Line over the weekend, hours after a similar robbery at the Loyola stop.



The Sheridan stop robberies occurred at 3:20 a.m. Saturday on the platform in the 3900 block of North Sheridan Road, according to Chicago Police News Affairs Officer Michael Sullivan.



The victims, a 20-year-old woman two man, ages 20 and 25, were waiting for a train when a man came up, took the shotgun from his backpack and aimed it at them, Sullivan said.



The man demanded cell phones from the three and fled, Sullivan said. The victims were not injured.