They are accused of conspiring to gather information that would be useful to an enemy between August 2020 and February this year.
Ken Livingstone, 78, is being 'well cared for by his family and friends' as he lives a 'private life' in retirement, a statement from his family said.
Remnants of the hurricane will particularly affect parts of west Wales, Cumbria and the Pennines, with a yellow rain warning in place.
Trade union Aslef says its members at 16 train operators will walk out on September 30 – the day before the conference – and October 4, the final day of the event.