LEGE-CAP FERRET, France (AP) – Firefighters in southwest France battled an uncontained wildfire four times the size of Paris on Wednesday as temperatures were forecast to hit 40C (104F), threatening to turn a calm night into only a brief reprieve.

Authorities in the Gironde region said the blaze had not spread overnight, but rising heat and afternoon winds could revive smoldering hot spots, carry embers across firebreaks and open new fronts beyond crews' reach.

At the command center in Lège, firefighters bent over maps spread across a car hood, tracking three danger zones: northern Cap-Ferret; the wooded corridor around Marcheprime, Cestas and Saint-Jean-d'Illac; and a military site near Martignas, where a major outbreak forced a large deployment.