The Met Police has said its Flying Squad arrested a 26 year-old man in Maida Vale and three 22 year-old men in Hendon on suspicion of armed robbery. They are being held at a north London police station.
“After a short period of surveillance we were able to identify those we believe to be involved in carrying out these armed robberies. In conducting a search at an address in London were able to find a firearm and I am pleased that this has now been seized and taken off the streets of London.”
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Before the final declaration on Friday, the Conservative candidate looked set to lose the City Hall race to Labour's Sadiq Khan.
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.