Gardaí are investigating criminal damage at 5G telephone masts in county Donegal.
Two separate incidences were reported last night in Letterkenny, one at Circular Road and the other at Long Lane where the equipment was set on fire.
The fire services extinguished both blazes.
It's understood the 5G masts may have been set alight deliberately.
Gardaí say nobody has been arrested and investigations are continuing.
