It has been confirmed that the Government did give approval for two American fighter jets to fly over Dublin last month.
The Department of Foreign Affairs granted permission for the F-16 jets to fly over Croke Park just before an American football match.
Some residents had complained about the controversial fly-past, saying they had not been warned about the loud noises caused by the jets as they flew over the stadium.
Defence Minister Simon Coveney says the department consulted with military authorities to discuss the use of radio frequencies, but that the Government had no objections to the fly-past.