Spanish air traffic controllers are threatening strike action ahead of the summer peak flying season in a dispute of irregular working patterns, Travel Weekly reports.
Airports on the east coast of Spain and the Balearics, including at El Prat in Barcelona, Palma, Ibiza and Menorca could be affected.
A representative from an assembly representing workers said that unless their demands were met, some could leave their posts from the end of this week.
Raul Tobaruela revealed that he was not optimistic that an agreement would be reached as the group were currently being ignored by the new Spanish government and ENAIRE, the air traffic service control provider.
The situation will be monitored and any relevant updates will follow.