Rochester Police arrested four teenagers for attacking and robbing a young woman downtown.
It happened just before 7:30 p.m. Wednesday on East Main Street.
Police say the teenagers followed the woman off an RTS bus, approached her from behind, put her in a choke hold, displayed a knife and knocked her to the ground, stealing her purse.
Edwin Albarran, 18, David Brock, 19, Joshua Albarran, 17, and Aaliyah Harris, 18, were arrested.
They are all charged with robbery, grand larceny and assault.