A fast-moving wildfire in southern France has forced the evacuation of dozens of homes as more than 600 firefighters and a fleet of water-bombing aircraft battled to contain the blaze, authorities said.

Fanned by strong winds and dry vegetation after days of extreme heat, the fire broke out on Sunday near the town of Draguignan in the Mediterranean département of Var.

The blaze burned 10 homes, damaged nine others and left one firefighter with minor injuries, according to the prefecture.

On Monday morning SNCF reported disruption to rail services near the fire, while there are several road closures.

The wildfire comes as southern France endures another heatwave, with temperatures having passed 40C in parts of the Var on Saturday.