A teenage boy was located safe and well, following a search operation last night on the Bangor Trail.
Mayo Mountain Rescue was called in at about 7pm to assist in the search for the missing teenager who was walking the Letterkeen Loop.
The team set up a base in the Letterkeen Loop car-park, and five search parties were sent out to walk sections of the loop and Bangor Trail.
The 16-year old was located just after midnight on the Bangor Trail.
It appears he got lost after missing a turn, and his phone battery died.
The teenager was walked back with the team and medically checked out at the base.
A spokesman for Mayo Mountain Rescue says he did not require further medical treatment
The Coastguard helicopter also assisted in last night's search.