Around 70 firefighters are tackling a blaze at a factory in Greenwich. Smoke can be seen across south-east London. There are swimming pool chemicals involved and people in the vicinity are being advised to keep windows and doors shut.
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The Tooting MP has been the frontrunner in the counting process ahead of Tory challenger Zac Goldsmith.
It's not just London where elections have been taking place today. There were council elections taking place across the home counties.
A list of results for London Mayor and the London Assembly