120,000 people across Ireland have taken to the streets as part of Darkness into Light.
The pre-dawn walk and run is in aid of Pieta House, the suicide and self harm prevention charity.
The event is now in its eighth year.
These people in Limerick city explain why they took part:
And GO! @DILDublin @PietaHouse pic.twitter.com/WteLCKI5T1
— DIL Phoenix Park (@DILDublin) May 7, 2016
Participants in @DILLimerick crossing Shannon Bridge #darknessintolight pic.twitter.com/v6cL1zHiLM
— David Hurley (@DHurleyLL) May 7, 2016