There are delays and cancellations at Manchester Airport after a “power issue” affected fuel supply.
Flights to Tenerife, Belfast and Milan are among 48 cancelled, while others have been delayed by hours.
A Manchester Airport spokesman said: “Due to a power issue this afternoon there is currently an issue with the fuel supply at the airport.
“Engineers are… on site to fix the issue and we are working with airlines to try and minimise the impact.”
It is believed all fuelling at the site has stopped.
The airport, which is still open, urged people to check with their airline for information and updates.
Passengers said they had been told the problems would last until 22:00 BST.
Some said they had been stuck on grounded planes for two to three hours.
Of the 48 flight cancellations, 27 were arrivals and 21 departures.
Graeme Forster, 37, from Queensferry, North Wales, and his wife were booked on to the 15:45 Jet2 flight to Lanzarote.
After waiting on the stationary plane for three hours, he and his fellow passengers were taken back into the terminal.
Mr Forster said: “I am severely annoyed as Jet2 are not being helpful. We’ve been told they are sending a flight from Leeds now due to arrive at 21:00 so hopefully leaving at 21:45. We will see.
“They have also said compensation is not an option as it’s the airport’s fault not Jet2.”