Paris fire at 5 star Ritz Carlton Hotel.
The Ritz was due to re-open in March after a three-year closure for multi-million euro renovations.
About 150 workers had to leave the building on Tuesday morning 19th January 2016 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 alert was raised at 07:00 local time and about 60 fire fighters 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 fire fighters on cranes sprayed the flames.
Fire captain Yvon Bot stated that the fire was unusually difficult to access and control. There is no longer any risk of it spreading, but the operation has still taken a very long time. We needed to go metre by metre from the roof. It is too small to access from the interior. He said a "large" section of the building was affected.
The hotel is a historic building in central Paris. The fire has now been brought under control.
Story collated by Liz Turnbull.
Registered Office: Southwold House, 66 Botley Road, Park Gate, Southampton, United Kingdom
Company number: 07810000