Donegal Gardaí are investigating criminal damage at telephone masts in the county.
Two separate incidences were reported last night in Letterkenny, one at Circular Road and the other at Long Lane, where the equipment was set ablaze.
The fire services had to be called and put out both fires.
Gardaí say nobody has been arrested at this time and are appealing for anyone with information to contact Letterkenny Garda Station or their local Garda Station.
Investigations are ongoing.
