His death comes just a week after Irish Professor Seamus Lawless went missing on Everest.
A Galway man has died while climbing Mount Everest.
The 360 Expeditions group says Kevin Hynes passed away this morning.
After reaching Camp 3 on Wednesday, Kevin was accompanied back down the mountain while the team's summit climbers headed higher.
He died in his tent at 7,000m in the early hours of this morning.
He'd been living in the UK, but the Department of Foreign Affairs here says it's ready to help if asked.
The group has described the 56-year-old as "one of the strongest and most experienced climbers" on its team.
Kevin's death comes just a week after Irish Professor Seamus Lawless went missing on Everest.
The 39-year-old from Bray in County Wicklow fell while returning from the peak of the world's highest mountain.
Searches for the Trinity College worker have been continuing on and off all week.