(MADRID) -- Spanish air traffic controllers are headed back to work from an unofficial strike after the government declared a state of alert, which meant those refusing to return could face prosecution.
Tens of thousands of travellers were left stranded when air traffic controllers walked off the job in a dispute over pay and conditions.
Approximately 50 percent of airspace was reopened Saturday shortly after Iberia – the country's largest air carrier – announced all flights would be cancelled until Sunday morning. The airline tweeted that flights from Santo Domingo, Chicago, New York and Miami were being rerouted to Portugal.
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