"Services have now resumed both ways between White City and Marble Arch,
but are running with severe delays. TfL said arrangements were being made
to move the east-bound train as soon as possible."

If they were able to resume the service in both directions with the failed
eastbound train still in position (as the BBC report implies), that would
certainly be newsworthy!

As the sign at White City station says: "There is no eastbound trains" (and
seemingly not very many westbound ones either)