A warning of disruption at airports in Portugal today has been issued due to a strike by security staff.
National airport management company ANA advised passengers to arrive at airports earlier than usual in case of delays.
The 24-hour strike by staff working for private security companies is reportedly being staged in a dispute over collective bargaining.
British Airways said: “Trade unions representing airport security workers across Portugal are threatening to hold industrial action at some airports on Thursday.
“We intend to operate our normal schedule of flights, but you may face a much longer wait at central security search at some points in the day.
“We expect the departures area of Lisbon airport to be particularly affected.”
EasyJet said: “We have been advised of a national security strike in Portugal on Thursday. It is likely to impact the queue times at security for all passengers.
“We will be operating our full flying programme to and from Portugal on Thursday, we don’t expect any impact on customers arriving into Portugal.
“It is recommended that all customers allow extra time to get through security, ensuring they arrive at the departure gate on time.”