A GLOBAL IT outage has affected Edinburgh Airport causing delays and some passengers to miss their flights.

It’s not yet known what has caused the issue, linked to Microsoft devices, but the tech giant said it is working to resolve the problem.

Edinburgh Airport said the IT outage is causing longer waiting times as the computer error has caused departure screens to malfunction.

The boards in the main departure terminal have reportedly frozen and are showing out-of-date information about gate numbers and take-off times.

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The BBC has reported that some passengers have missed their flights due to the ongoing technical issues. 

Earlier this morning the fire alarm went off in the main terminal in the airport, which was believed to be triggered by the same computer error.

A spokesperson said: “An IT system outage means wait times are longer than usual at the airport.

“This outage is affecting many other businesses, including airports.

“Work is ongoing to resolve this and our teams are on hand to assist where we can. Passengers are thanked for their patience.”

Microsoft says it is investigating an issue impacting users’ ability to access apps and services.

A spokesperson for the tech giant said: “Our services are still seeing continuous improvements while we continue to take mitigation actions.

“We still expect that users will continue to see gradual relief as we continue to mitigate the issue.”

Ryanair has also warned of “potential disruptions across the network” due to a global third party system outage.

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On the airline’s website, it posted: “Potential disruptions across the network (Fri 19 July) due to a global 3rd party system outage.

“Affected passengers will be notified and any passengers travelling across the network on Fri 19 July should check their Ryanair app for the latest updates on their flight.

“We advise passengers to arrive at the airport 3 hours in advance of their flight to avoid any disruptions.

“We regret any inconvenience caused to passengers by this 3rd party IT issue, which is outside of Ryanair’s control and affects all airlines operating across the network.”