Strike action by Portuguese fuel tanker drivers may cause disruption to flights to and from the country, according to a travel warning from the Foreign and Commonwealth Office.

The strike has caused fuel supply problems across the country, forcing airports to resort to emergency reserves. Drivers had originally guaranteed they would run a minimum service, but the government says this is not being provided.

According to Reuters, Faro airport dipped into emergency fuel supplies, while Lisbon is also affected.

Portuguese economy minister Pedro Siza Vieira told reporters: “At both airports, where fuel supply wasn’t ensured, we have reached critical levels of fuel reserves for aircraft refuelling.”

Oil companies and Portugal’s government and security forces are sending tanker trucks to Lisbon to resupply its reserves. The country has declared an energy crisis over the strike, meaning security and emergency services have priority for refuelling at petrol stations.

Passengers due to fly into or from Portugal – especially at Faro and Lisbon airports – are being advised to check the status of their flight.

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