Mayor Boris Johnson will be in Croydon North today ahead of next weeks by-election in the seat.
He will campaign alongside Conservative Party candidate Andy Stranack.
On Thursday Ed Miliband will join Labour's campaign.
More top news
Members of the Queen's Guard have been assigned the protection of armed police, amid reports they could be targeted by terrorists.
When Robin Ollington wrote to Buckingham Palace suggesting they introduce a Christmas tree, he didn't expect them to write back...
New research by consumer group Which? has revealed the most delayed flight route of the year ending in August 2014 was to London Gatwick.