A fire on the top floor of the five-star Ritz hotel in Paris has been brought under control.
About 150 workers had to leave the building on Tuesday morning as the fire took hold. No injuries are reported.
The hotel - which is famously where Princess Diana spent her last evening - is currently closed for renovations and there are no guests staying there.
The operation will take "a long time" as the fire is difficult to access, a fire service spokesman said.
The alert was raised at 07:00 local time (06:00 GMT) and about 60 firefighters and 15 fire engines were sent to the scene.
The blaze started on the seventh floor, took hold in the attic and spread to the roof.
Paris police tweeted that there was a "major fire", and advised motorists to avoid the Place Vendome area.
The area was blocked off at the height of the morning rush hour, while firefighters on cranes sprayed the flames.