The Australian Army and United States military Black Hawk helicopters will be taking to the skies over WA for scheduled counter-terrorism exercises over the next month.

The helicopters will be flying over civilian locations, and commercial buildings and transport hubs are expected to bear the brunt of the disruption.

The exercises are expected to last just over a month. Credit:WA Police

The exercises expected to last between the end of April to mid-June.

WA Police have reassured the public not to be alarmed if they see low-flying helicopters, vehicles and military personnel around Perth and the South West.

The public should also not be alarmed if they hear “blank gunfire and pyrotechnics”.

“People who see the training should not be concerned that any of the locations are under any form of actual threat,” a statement from the Australian Defence Force said.

“Training such as this helps ensure Australia and our US allies to remain among the best counter-terrorism response capabilities in the world.”