Major disruption has been caused by a large fire on the top of Marconi House on Strand. The fire broke out this morning and is still being tackled by fire fighters.
Pictures show plumes of smoke coming from the back of the building, a hotel on Aldwych currently under a much-delayed renovation.
Traffic on Strand, Aldwych, Kingsway and Waterloo Bridge is likely to be affected by the operation to extinguish the fire for some time.
We'll update this post with any developments.