**Correction: The original version of this story indicated the airport's public address system was not used to warn passengers. The Calgary Airport Authority confirms announcements were made after a potential risk was identified.**

Passengers, guests and workers at the Calgary International Airport spent minutes in hiding on Friday afternoon following reports of an active shooter in one of the airport's terminal, a claim police have determined to be a hoax.

Shortly after 5:00 p.m., members of the Calgary Police Service responded to the airport to investigate an unconfirmed reported that someone had shot at a store within the terminal. Officers scoured the building before concluding the report was unfounded.

Officials with the Calgary Airport Authority confirm notifications were sent to staff during the investigation and workers assisted passengers move throughout the building. The Calgary Airport Authority says announcements were broadcast through the public address system warning everyone inside of the potential risk but the terminals were not evacuated.

Several flights were delayed as a result of the police investigation, For updated information on flight times, visit Calgary International Airport - Traveller Info

The Calgary Police Service says the investigation remains active as officers attempt to identify the person who made the original call.