Monaghan GAA have admitted a breach of Covid-19 regulations after it was discovered some members of their senior inter-county team took part in a group training session.
The Monaghan County Board investigated the matter after the Irish Independent reported that a dossier detailing the breach was sent to several different parties, including the Department of Justice.
The video, as well as photographic evidence, appeared to show Monaghan footballers engaged in a training session.
A statement from Monaghan GAA said that manager Seamus McEnaney had admitted that this was a serious error of judgement and apologised unreservedly for the indiscretion.
The county's management committee have suspended McEnaney for 12 weeks with immediate effect and said they will fully cooperate and comply with any Croke Park investigation.
An Garda Síochána has confirmed it is making enquiries into the alleged breaches of Covid regulations while the GAA has also vowed to investigate the matter fully.
The latest breach of a ban on collective training until 19 April comes as the GAA are expected to announce their planned schedule for the 2021 League and Championship today or tomorrow.
Last week, Dublin suspended senior football manager Dessie Farrell for 12 weeks after footage showed members of the All-Ireland winning panel involved in drills at Innisfails GAA in the north of the county.
Dublin GAA said it was a "serious error of judgement" and followed on from two other high-profile breaches of GAA guidelines earlier this year.
The Mourne men elected not to appeal the decision, while Cork manager Ronan McCarthy was handed a 12-week ban, which he unsuccessfully appealed, after bringing his squad to a beach in Youghal for a team-building exercise.
Minister for sport Jack Chambers believes that the latest rules breaches by Monaghan GAA inter-county players will cause anger amongst those who have made great sacrifices throughout the Covid crisis.
The Minister for State who is responsible for sport said that any breach of public health rules is unacceptable and has been assured that the GAA are investigating the matter following communication with the Department of Sport.
"The latest reports will cause great anger to all those who have been adhering to the rules and have made great sacrifices," said Minister Chambers, in a statement released to RTE.
"Any breach of the public health rules like this is unacceptable. This undermines the public health messaging when our GAA stars and sports teams should be supporting them and leading by example as role models.
"My officials from the Department of Sport have been in touch with the GAA to reemphasise that all breaches undermine the broader public health messaging. The GAA will now be fully investigating this incident to establish the full facts.
"I expect the GAA will also now be directly engaging with all the county boards to seek assurances that counties are fully complying with the public health restrictions.
"Any breach needs to be fully investigated with appropriate sanctions for those who are found to have undermined the public health guidelines.
"The GAA also needs to re-emphasise to all county boards that there must be full compliance with the restrictions between now and the 19th of April when the phased return to sport is due to recommence."
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