A fast-moving wildfire reached the outskirts of Marseille, France’s second-largest city, on Tuesday, leading its airport to be shut down, with residents told to stay indoors and shut all openings to be safe from the smoke.

A wildfire that broke out near Marseille in southern France forced the closure of Marseille Provence airport on Tuesday, a spokesperson there said. Planes have not been taking off or landing since around midday and some flights have been diverted to Nice,

The prefecture urged people in the affected areas to stay indoors and off the roads. With the fire approaching Marseille, the prefecture also advised residents in the northern area of the city to remain inside with doors and windows closed to prevent toxic smoke from entering their homes.