"We are appealing for witnesses in relation to this incident to contact Gardaí"
Investigating officers are appealing for anyone who was in the area at the time to come forward.
It had been reported that two petrol bombs had been thrown at the Dublin 12 pub owned by the famous fighter on Wednesday night, and that Gardaí had responded to reports that two pipe bombs had been left on the premises.
However, Gardaí could only confirm that they were investigating an incident of “attempted criminal damage at a licenced premises on the Drimnagh Road, Crumlin”.
“No damage was done to the premises,” Gardaí said in a statement. “We are appealing for witnesses in relation to this incident to contact Gardaí.
“We are particularly keen for anyone with camera footage from the area overnight to make this available.”
A spokesperson said that anyone with any information is asked to contact Crumlin Garda station on 01 666 2000, the Garda Confidential Line on 1800 666 111 or any Garda station.
The Notorious bought The Black Forge Inn for €2 million in 2020 and has since spent a further €1 million upgrading it.
The UFC star also recently secured planning permission with 10 planning conditions attached by the council for the scheme, which will see the Dublin pub gain an extension at the rear of the venue.
McGregor can now continue with plans for a single-storey extension of around 104.2 square metres and a food preparation area.
The conditions of the planning permission also include approval for a 32.7-square-metre outdoor dining area and a canopy over this location towards the back of the pub.
Planning documentation lodged with the council states that The Black Forge Inn recently purchased land behind the adjoining betting office to facilitate the expansion of the pub.
The submission also reassures the council that “the hours of the public house will remain the same as they are at present, which is standard for the Dublin City jurisdiction and helps to promote the night-time economy in supporting Dublin becoming a 24-hour city.”