PITTSBURGH — College students in the city's Oakland neighborhood said they overpowered a man after he allegedly robbed them at gunpoint and raped a woman, police said.

Tito Rivera, 21, of East Liberty, was bound with an extension cord and shoelaces when police arrived at the students' residence at about 3:20 a.m. Saturday.

Rivera was charged with rape, robbery, making terroristic threats and simple assault.