In response to Lusa, ANA - Aeroportos Nacionais explains that some airlines and ground handling companies are being affected due to a computer failure, which is causing constraints, particularly at check-in and when boarding some flights.

The airport manager added that "the IT system at Portuguese airports was not directly affected".

At this moment, says an official source from the company, "the impact of this situation is being assessed and constraints on airport operations are expected that affect airlines and other airports".

Therefore, it asks passengers to find out about the status of their flight before heading to the airport.

A global flaw in Microsoft's system is causing problems for countless companies, including airlines, financial, media, and other industries in various parts of the world.