Bohemians admit they made an "error" in allowing two groups of three of their players to train together.
Footage of the session at Father Collins Park in Donaghmede emerged on social media today.
Bohs say their players have been adhering to social distancing guidelines but they will now only have one group of three players per venue until collective training is allowed from next week.
"A video of Bohemians players exercising in a public park that has been circulated on social media has been brought to the attention of the club and we wish to clarify the circumstances," the club confirmed in a statement.
"Compliant with guidelines, Bohemians players have, since Monday May 18, on six separate days, met in groups of three in public parks around the city.
"These groups of players were assembled in a way that respects the 5km travel rule that remains in place, while strict measures, which can be seen below, were put in place to enable this to happen in a safe manner.
"These measures include players travelling to location on their own, players maintaining social-distancing, while procedures were put in place for the use and sanitisation of any equipment used.
"The video now in circulation shows two groups at Fr Collins Park in Donaghmede.
"While it was an error to have two groups at the same venue at the same time, a distance of 20 metres was maintained between the two groups at all times.
"All club stakeholders involved have agreed that there will only be one group of three plus one coach per park/location until the FAI's agreed date for the club to return to collective training on Monday 8 June."