Both countries have requested, and received, help from other European Union nations

Fire crews in France and Spain battling unchecked wildfires that have forced more than 300,000 people to flee were overwhelmed on Sunday as the unpredictable blazes advanced.

France’s southwestern city of Bordeaux, at the heart of a region of vineyards, was under threat, with a major highway and train lines cut.

In Spain more villages in the fire zone raging west of Madrid were emptied during the night – and a new front opened near the coastal city of Valencia.

France was faced with “a historic situation”, Prime Minister Sébastien Lecornu said on Saturday.