GARDAI AT SCENE OF THREE CAR COLLISION IN LETTERKENNY written by Stephen Maguire February 19, 2013 Gardai are at the scene of a three car collision at Mountaintop, Letterkenny. The accident happened just after 9am just a couple of hundred yards on the Letterkenny side of Kelly’s Centra service station.It is not believed anybody has been seriously hurt in the accident although there are delays.