The FBI responded to a report of a bank robbery around 9 a.m. at a BMO Harris Bank at 130 W. Devon Ave.
Three suspects entered the bank and demanded access to the vault with one showing a pistol, according to the FBI.
The FBI released surveillance images of three suspects wanted in connection with a bank robbery in Wood Dale on Wednesday.
It was not immediately clear how much money was stolen.
Anyone with information can submit anonymous tips to (312) 421-6700 or tips.fbi.gov.