Tributes have been paid to Monaghan’s under-20s captain Brendan Óg Ó Dufaigh who was killed in a traffic collision on Friday night.
The 19-year-old died after two cars collided on the N2 in Tullybuck, Clontibret, at around 11.30pm.
It is understood he was returning from playing in the Ulster football championship semi-final against Donegal.
Monaghan GAA has said it is “deeply saddened” with the tragic passing of Ó Dufaigh.
“We extend our heartfelt sympathy to Brendan Óg’s family, his father Brendan, his mother Esther and his sisters Claire and Áine and to his friends, his teammates and his club Monaghan Harps,” a statement from the club said on Saturday.
“Our thoughts and prayers are with his family at this very difficult time. Ar dheis Dé go raibh a anam.”
His club Monaghan Harps tweeted this morning: “Our club is devastated at the news of the untimely death of our senior player and county U20 captain Brendan Óg Ó Dufaigh.
“Our thoughts are with his family and friends at this very sad time. All club activity has been postponed until further notice.”
Gardaí are appealing to anyone who may have witnessed the collision to come forward.
Former Irish international rugby player Tommy Bowe, who is from Co Monaghan, said it was "heartbreaking news" to hear of the young footballer's death.
“Sending my deepest condolences to his family and friends,” he said.
Sinn Féin TD Matt Carthy TD said there was a dark cloud over Co Monaghan after “such a tragic loss of a wonderful young man. Deepest sympathies to all who knew and loved him”.
Several county boards and local GAA clubs have also expressed their sympathies.
Any road users who were travelling in the area and who may have camera footage (including dashcam) are asked to make it available to investigating gardaí.
Anyone with any information in relation to this incident is asked to contact Monaghan Garda station on 047 77200, the Garda Confidential Line on 1800 666 111 or any Garda station.