Dead cows have been discovered on the army training range at Barry Buddon near Carnoustie.
The carcasses were found in the big wood area of the Barry range, a popular route for dog walkers.
An army spokeswoman confirmed they had been made aware of the complaint and officials contacted the farmer who grazes cattle on the land.
She said the farmer was in the process of identifying the cause of death to the cattle, but stressed the animals were not injured in any military training exercise on the ranges.
A spokeswoman for Angus Council said, “On February 25 we were advised by a member of the public that there were cattle carcasses at Barry Buddon.
“We notified the farmer who uplifted carcasses within the following few days.
“On March 18, the farmer found a further three carcasses which were in long grass and ditches and had been missed in the previous clearing.
“A further two carcasses are being removed this week.
“The Barry Buddon area covers some 3000 acres of sand dunes, ditches, woodland and scrub and it can prove difficult to find fallen stock.”
Barry Buddon training area covers 930 hectares of coastal plain on the Tay Estuary between Carnoustie and Monifieth.
Certain sections of the area are open to the public outwith periods of live firing.