A group of mid-day muggers were tracked down by the San Francisco Police Department Monday, after the miscreants accosted two women for their lunch.

The female victims were walking near Sacramento and Franklin Streets at 3:30 p.m. Monday, police say, when two men aged 17-21 approached the woman and demanded a lunch pail and cell phone from their victims.

A passer-by attempted to detain one of the suspects as they fled, but a third suspect (also male, also aged 17-21) appeared and freed his criminal colleague from the samaritan, according to the SFPD. All three of the men then hopped into a car being driven by a fourth suspect, a 17-year-old woman.

Police say that officers were able to locate the vehicle and suspects shortly after the incident. All four were arrested, police say, and remain in custody as of Tuesday morning.