A blaze in southern France forced the closure of the Marseille airport, and weather agencies issued warnings for other parts of Europe where temperatures were expected to climb this week.

LONDON (Reuters) -Wildfires have killed two people in Spain and two others have died in France because of a heatwave that has gripped Europe and forced the closure of a nuclear reactor at a Swiss power plant.

Flights at Marseille Airport have been halted due to a wildfire raging near the southern French port city, according to local authorities. On Tuesday, the prefecture advised residents in the affected areas to stay indoors and avoid travelling.