What's the latest with the Tube walkout?published at 12:23 British Summer Time 8 September

A strike on London's Underground network has caused widespread disruption in the capital.
Most Tube lines have no service and thousands of commuters have been forced to make alternative travel arrangements to get to their destinations.
It comes as workers who are members of the Rail, Maritime and Transport (RMT) union launched industrial action over their pay and working conditions.
Disruption is expected until Friday. Transport for London (TfL) has warned that there will be few or no services between Monday and Thursday on its networks, with some further disruption on Friday morning.
TfL offered workers a 3.4% pay rise, which it describes as "fair", but it said it could not afford the RMT's demand for a cut in the working week. Nick Dent, who works for London Underground, said the union's request for a cut to the 35-hour working week is "simply unaffordable".
RMT union members - train drivers, signallers and maintenance workers - have requested an improvement to their working conditions and pay, including demanding to work a 32-hour week.
A spokesperson for RMT says the aim of the strike action is not to disrupt small businesses or the public, but the walkout was a result of TfL's "refusal to even consider a small reduction in the working week in order to help reduce fatigue and the ill-health effects of long-term shift work on our members".