Gardai in Milford are investigating reports that the Sligo emergency helicopter was targeted with an alleged laser in the early hours of this morning.
The helicopter was assisting in a search along with several other rescue units for a missing Gaoth Dobhair man.
The pilot contacted Malin Head coastguard station when a laser was directed at him.
Malin Head coastguard contacted Milford Garda Station who are investigating the matter.
A 52 year old man's body was later recovered from a quarry pond at Meenderrygamph in Gaoth Dobhair this morning.
Gardai are appealing to anyone with information to come forward.