Boris Johnson was also asked about speculation that he might be offered the Conservative Party Chairmanship ahead of the general election. He replied:
"Nobody has offered me any such role. The most important thing I have to do is run this city and I'm not aware of any plans to make me any such offer. I've got to get on with being mayor."
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Camden Council is evacuating five tower in the Chalcots estate in north London, to allow "urgent fire safety works" to take place.
Scotland Yard said it was taking action under public order laws over the marches "due to concerns of serious public disorder".
The Football Association says it is hoped that the match will raise around £1.25million for the victims.