A Trinity College professor has been reported missing while attempting to descend from the summit of Mount Everest.
Seamus Lawless from Bray reached the peak of the world's highest mountain this morning.
The 39-year-old was part of an eight -member expedition that includes a number of Irish climbers.
He set out on the expedition with his climbing partner Jenny Shirley Copeland in a bid to raise funds for Barretstown Children’s Charity, which supports seriously ill children and their families.
In a statement, Trinity College Dublin says it is offering any support it can to his family at this extremely distressing time.
It remains hopeful that he will be found "safely as soon as possible".
The Department of Foreign Affairs says it stands ready to provide consular assistance if requested.
“Seamus and his family are in our thoughts during this extremely distressing time", the college said.
"This morning his family, friends and colleagues shared his joy on reaching the peak of Mount Everest".
"We hope that Seamus is found safely as soon as possible and until then we will be offering any support we can to his family.”