JET2 has spoken of dealing with an "extremely difficult situation" on a flight as a man died.
The plane was flying from Tenerife to Manchester Airport on Tuesday evening when a passenger on board required medical attention.
Staff on the flight intervened after they became aware of the situation.
But the passenger sadly died despite their best efforts, according to a spokesperson for Leeds Bradford-based Jet2.
The flight had to be diverted to Cork Airport, as a result of the medical emergency.
It is believed the plane was meant to touch down in Manchester at 8.30pm, but it was 1.30am the next day when the flight arrived there after the diversion.
A full statement from Jet2 said: "Flight LS918 from Tenerife to Manchester diverted to Cork Airport on Tuesday 2nd January, due to a customer requiring medical attention.
"Regrettably, we can confirm that the customer sadly passed away, despite the best efforts of our highly-trained crew who intervened as soon as they became aware.
"This was an extremely difficult situation for our crew and we would like to thank them for their efforts.
"Our thoughts are with the customer's family and friends at this very difficult time."
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here