The European Commission is expected to make a decision on an attempt by RyanairÂ to take over Aer Lingus later.
However it is unlikely the investigation will come to a close today.
Michael O’Leary’s airline made an offer of €1.30 per share for Aer Lingus in June giving it a value of €694 million.
But this was rejected as undervaluing the carrier.
Ryanair holds a 29.8% stake in the airline and it is understood it has made informal approaches to other airlines about taking up some of the Aer Lingus Heathrow take-off and landing slots in an effort to address competition concerns.
Gerry Byrne is an aviation journalist.
He told Breakfast here on Newstalk there is likely to be further investigation into the matter after today.
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