GAA President Larry McCarthy says the association will investigate reports of overcrowding at Sunday's Tailteann Cup semi-finals.
A number of fans took to social media on Sunday to complain about congestion issues inside Croke Park as Meath defeated Antrim and Down beat Laois.
One wrote: "Fantastic opportunity to support @OfficialDownGAA today, but what unfolded between the 2 games was a logistical failure from @officialgaa No reserved seating, 3/4 stadium empty but 4 counties squeezed into the Lower Hogan was mayhem and quite frankly scary!!! A disgrace!!!"
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Another commented: "People couldn't move behind the stands very dangerous."
Someone else said: "There was congestion yesterday..Lower Hogan stand was overflowing.. Davin Stand was opened to cater for these paying customers to avoid serious issues."
McCarthy was unaware any issues at the games, but said the GAA would look into the matter.
He told RTE Radio 1's Morning Ireland: “No I wasn’t witness to anything. You’re right I was there, one brilliant game, one not so great game. But I mean there was 17,500 people there in an 82,000 seat stadium so its difficult to see how there was congestion.
"But we’ll certainly look at it this morning I can assure you.
“The lower Hogan was open and the premium section was open and it was general admission so you could sit anywhere essentially. And we openrd up the Davin as well as the crowd came in to give people plenty and plenty of room.”
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