Police are looking into possible links with another stabbing in South London on Friday. The incident happened around lunchtime in West Norwood. A 17 year old was injured and is in a stable condition in hospital.
One man has been arrested over this attack, and continues to be questioned by police.
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.