Hundreds of passengers flying with Ryanair are facing flight delays over the next three days.

It's because of industrial action being carried out by French traffic controllers.

Airlines like Ryanair, easyJet and British Airways are all likely to be affected.

The strike started today and doesn't end until 5 am Tuesday morning local time.

Officials are claiming passengers were experiencing delays averaging 50 minutes, and advise all passengers to ring their airlines for updates.

The French air traffic controllers are protesting against a cap on recruitment and lack of investment in the systems used by workers.