Smoke from the fire can be seen across London About 75 firefighters are tackling a blaze in the roof of a building in central London.
The London Fire Brigade was called to a 10-storey hotel and flats under refurbishment, in the Aldwych area at about 1100 BST.
A number of roads have been closed in the area as 15 fire engines attend the blaze.
London Ambulance said it was on standby at the scene but it had not treated anyone.
People have taken pictures of the fire The fire has sent smoke across the London skyline.
The A4 in Aldwych was closed due to the fire, while southbound traffic on Kingsway from High Holborn was blocked.
All traffic from Waterloo Bridge is being diverted down the Strand to Trafalgar Square.
London Underground is accepting bus tickets within Zone 1, with bus routes 6, 9, 11, 13, 15, 23, 26, 76, 87 and 139 being affected.
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