Both the Republic of Ireland and Scotland will wear black armbands during tonight's World Cup play-off at Hampden Park in tribute to those who died in the explosion in Creeslough.
Players will also gather in the centre circle as the stadium observes a moment of silence before kick-off, after 10 people were killed in the tragic incident in the Donegal village last Friday.
"The sense of grief and loss in Creeslough at this time is beyond imagination," FAI President Gerry McAnaney said.
"We can only offer the love and support of everyone involved with Irish football to the people of Creeslough, our many friends across Donegal and all to those who are grieving the loss of loved ones at this incredibly difficult time.
"Ar dheis Dé go raibh a h-anamacha."
Ireland are looking to make history later by qualifying for a first ever major tournament.
Watch Scotland v Republic of Ireland live on RTÉ2 and the RTÉ Player on Tuesday from 7pm, follow a live blog on RTÉ.ie/sport and RTÉ News app and listen to live radio commentary on RTÉ 2fm's Game On.
