CHICAGO – A Chicago woman and four teenagers are facing charges after police say they robbed a passenger at knifepoint on a CTA Red Line train last month.

What we know:

The robbery happened around 1:40 a.m. on June 21 as the train was approaching the 69th Street station, police said.

CTA Red Line Armed robbery suspects | CPD

According to investigators, the victim was approached by a group who physically assaulted her before pulling out a knife and using it to cut the straps of her backpack, taking it and its contents.

The offenders then got off the train at the 69th Street stop.

Dig deeper:

Police announced charges against 23-year-old Aaliyah Gist. She faces one felony count of Armed robbery with a dangerous weapon. Her detention hearing was scheduled for July 2 at the Leighton Criminal Courthouse.

Four juveniles were also charged:

• A 14-year-old girl faces three felonies: Armed robbery with a dangerous weapon, robbery, and aggravated battery to a transit employee.
• A 14-year-old boy faces one felony count of Armed robbery with a dangerous weapon.
• Two 15-year-old boys each face one felony count of Armed robbery with a dangerous weapon.