US President Joe Biden's visit to Ireland cost an Garda Síochána €31m.
A freedom of information request released to the Irish Times shows the security operation involved two thousand Garda members, and cost €18m more than initially estimated.
The costs included overtime for Gardaí which came to over 22 million, and 'unsocial hour allowances' which came to €1.87m.
In a statement issued to the paper, Gardaí say a larger police presence and security operation was needed, when compared with Donald Trump's visit in 2019, due to the number of locations Mr.Biden visited.