Gardai have carried out a major raid at a property on a Letterkenny housing estate.
Officers, supported by members of the Armed Support Unit, raided the house at Oaklands Park at Gortlee just before midday.
Gardai are remaining tight-lipped about the reason for the raid and it has not been established if any arrests were made during the searches.
Members of the Armed Support Unit were later spotted in the Glencar area of the town.
We will bring you more on this breaking story as we get it.