Northern Ireland's sports minister said he was still waiting for clarity from the UK government on how much money would be provided for the redevelopment of Casement Park.
Gordon Lyons said uncertainty around the flow of funds was an “impediment” to the redevelopment of West Belfast Stadium.
The stadium will be used for Euro 2028, which will be held in the UK and Ireland.
However, costs rose to exceed the original estimate of £77.5 million.
The Stormont Executive had previously pledged £62.5m and the Gaelic Athletic Association (GAA) had committed £15m to the project.
DUP MP Jim Shannon has suggested the total cost could be £220m, but Westminster sources now say it could be as high as £300m. Suggests.
The Irish government announced in February that it would provide €50m (£42.8m).
Northern Ireland Secretary Chris Heaton-Harris has previously expressed confidence in funding Casement Park.
But in a letter to the Department for Communities earlier this year, he said the government was “not willing to accept a position where it is expected to cover a funding gap of the magnitude that appears to exist”.
Mr Lyons told Stormont Council's regional scrutiny committee that the executive's previous funding allocation to Casement remained in place.
The Communities Minister said he was still seeking clarity on how the funding gap would be filled.
“While the department is now the contracting authority for Casement, we cannot proceed further with the procurement until we have clarity on the source of the funds,” he told MPs.
Mr Lyons was asked by Alliance Party MP Sian Mulholland where there were “obstructions” in progressing the tender process for the stadium project.
The minister responded: “It is becoming clearer from our funding partners, including the UK Government, how much they are prepared to contribute to the overall cost of this blockade.”
“That's what we're waiting for. I've asked the UK government for clarity on that. I think the discussions are ongoing, but there's been no response to that yet.”
financial negotiations
Meanwhile, the First Minister and Deputy First Minister have requested a meeting with Chancellor Rishi Sunak to discuss Stormont's finances.
Stormont's cabinet is currently working on its budget for the financial year.
But Treasury officials warned on Wednesday that ministers needed £2bn more than was available.
Premier Michelle O'Neill said further investment was needed to transform public services.
She was speaking after a meeting with Mr Heaton-Harris and Deputy Prime Minister Emma Little Pengelly.
GAA chairman Jarlath Burns said on Wednesday that the UK government had a “moral obligation” to support the GAA “given what has happened in the past”, adding that Casement Park's remaining funding shortfall could be resolved by the UK government. asked to be filled.
He said there had never been any compensation for Bloody Sunday, when British troops opened fire on spectators attending a Gaelic football match in Croke Park in 1920, killing 14 people.
“Money will never change that,” he told BBC Radio Ulster's talkback show.
“But the UK government told the GAA, 'We're not against you. We understand the role you play in your local community. We're doing this for you. You can send a signal saying, “I'm going to do this.''
“The past is a very sad story, including our interactions with the British government. But the Northern Ireland football team, who play at the GAA ground in west Belfast, is the story I want to build on.”
Mr Burns then said there would be “welcome news” about the stadium's redevelopment next week.
