Two teenage girls who were killed in a road crash in Co Monaghan, were on their way to Largy College's school Debs ball.
The single-car crash happened on the N54 in Legnakelly on the Clones to Smithborough Road just before 7 o'clock on Monday evening.
The driver of the car, who's aged in his 60s, is in a critical condition in the Royal Victoria Hospital in Belfast.
An 18-year-old girl is in a serious condition at Cavan General Hospital. A boy also 18, is being treated for less serious injuries.
The Debs was cancelled after news of the tragedy emerged, and the local youth club in Clones remained opened until late last night to offer support to other students.
Caothairleach of Monaghan County Council, David Maxwell, says the scale of the tragedy is hard to put into words.
"They were on their way to a Debs in Monaghan from Largy College, which is in the middle of Clones town, so you know the whole town of Clones and Co. Monaghan, is you know... you really can't put into words the tragedy that has hit the county".