The rail station of Canfranc was the conduit for the smuggling of people and information from Vichy France to the British consulate in San Sebastián.
Trains still run from Canfranc and these depart to Jaca and Zaragoza.
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The section between Oloron-Sainte-Marie and Canfranc was indefinitely closed in March 1970 due to an accident where the railway bridge of L'Estanguet near Accous was destroyed.