There are calls for the government to make affordable childcare a top priority.
The Daycare Trust Institute says London families continue to be hit hardest by the ever increasing costs of nurseries.
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Jame Murray's challenge is to deliver Mr Khan's manifesto pledge to build more than 50,000 new homes a year - half of them affordable.
Ryan Lee was removed from the finishers' list because he was not picked up by the 5k checkpoint.
Tonight, dry with clear spells initially.