Concerned listeners called the CJAD Newsroom Sunday afternoon about military jets flying over Montreal.
Two CF-18's were involved in a flyby over Molson stadium, where the Alouettes were taking on the Toronto Argonauts.
They flew at the opening of the Als' Canadian Armed Forces Appreciation game.
A news release said, "The aircraft will fly over the stadium at an altitude no lower than 500 feet above the highest point of their route before resuming a higher flying altitude for the return trip to 3 Wing Bagotville. Flybys by CAF aircraft are conducted in support of special events. They are carefully planned and closely controlled to ensure public safety at all times."