A man has been arrested in Alicante in Spain over a double murder in Co Louth four years ago after he arrived in the Spanish city on a flight from Belfast.
The 32-year-old was detained on a European arrest warrant at around 9.30pm on Tuesday night after arriving on the EasyJet flight.
Civil Guard officers had been tipped off and were waiting for him at the Costa Blanca airport.
He is now due to appear at a hearing in Madrid where he will be asked if he consents to extradition or not.
The man is understood to have been arrested in connection with the murders of Dublin gangland figures Anthony Burnett, 32, and Joseph Redmond, 25.
The pair, from Ballybough, were found in the front seat of a burning car close to Ravensdale Forest, Co Louth, in March 2012.
It is believed the men were tortured and shot in the head before the vehicle was set alight.
A 41-year-old from Rathmines, south Dublin city, was arrested over the crime in April 2014.
A spokesman for the Civil Guard in Alicante said: “I can confirm we have arrested a 32-year-man on foot of an extradition warrant in connection with a double murder.
“He was held as he arrived at Alicante Airport on a flight from Belfast.”