TfL website:
The Piccadilly Line has no service between Acton Town Station and Hyde
Park Corner Station in both directions.
This will affect journeys from 16:25 on 25/06/04 until further notice.
This is due to an empty derailed train at Hammersmith Station.
If you are travelling to tonight's concert at Hyde Park, please travel
on the Jubilee or Victoria lines to Green Park, or on the Central Line
to Marble Arch, which are both a short walk from the concert.

--
Dave Arquati
Imperial College, SW7
www.alwaystouchout.com - Transport projects in London