Police have arrested four people after a 77-year-old woman was robbed while attempting to help one of the thieves who was faking an injury.

In a statement released Friday afternoon, police say the elderly woman was walking home in the area of Pape and Cosburn Avenues after making a withdrawal at a bank when another woman pretended to fall. Police say the unknown woman faked an injury, and the elderly woman went to her aid. The robbery happened on April 29.

While attempting to assist her, police say two teenaged girls allegedly reached into the woman’s shopping bag and stole her purse. The girls and the unknown woman then took off and got into a car driven by a man.

Police say Rozalia Kolompar, 54, Kalman Olah, 22, and the two girls have been charged with theft under $5,000 and possession of property obtained by crime under $5,000.

Kolompar and Olah are scheduled to make a court appearance on June 11. And the two girls, who cannot be named under the Youth Criminal Justice Act, are expected to make a court appearance on June 9.

Police believe there may be more victims.

Anyone with information should contact police at 416-808-5400, or Crime Stoppers at 416-222-TIPS (8477).