Bond was denied Saturday for two suburban men charged with a string of armed robberies they allegedly committed using an online app on Chicago’s North Side.

The suspects contacted at least nine victims through the app between Oct. 14 and Thursday to lure them into a gangway in the 7600 block of North Bosworth Avenue, where they robbed them at gunpoint, according to Chicago Police.

Stephen Jackson, 25, and Trenell Kirkman, 28, were both arrested about 2:25 p.m. Thursday, following an undercover investigation by Area North detectives and Rogers Park District officers, police said.

Jackson, an Evanston resident, was charged with three counts of armed robbery with a firearm, and one count each of attempted armed robbery with a firearm, unlawful possession of a credit or debit card, and possession of a firearm with an expired FOID card, police said.

Kirkman, a Blue Island resident, was charged with four counts of armed robbery with a firearm, one count of attempted armed robbery with a firearm, and one count of solicitation of a sexual act, police said.

Jackson and Kirkman were denied bond at a court appearance Saturday, according to the Cook County sheriff’s office records. Both are scheduled to return to court Thursday.