[Ads /]
The robbery occurred around 9:35 a.m. as the Brinks truck was parked in front of Pete's Fresh Market in the 1900-block of Sibley Blvd., Calumet City spokesperson Sean Howard said.
Photos show four suspects at the rear door of the Brinks armored truck. There was also a car with an unseen driver, the FBI said.
The suspects displayed guns and are still at large at this time, the FBI said. No injuries were reported.
[Ads /]
The incident was one of three armored truck robberies that occurred in the south suburbs and Chicago on Wednesday. It is still not known if the robberies were connected.
It is still not known how much money was stolen. The FBI's investigation is still ongoing and there is no further information available at this time.
See also: FBI releases photos of suspects in suburban Brinks armored truck robbery
Anyone with information related to this incident is asked to contact the FBI at 312-421-6700 or tips.fbi.gov.