Just after 6am a convoy carrying more than 40 police officers crossed Vauxhall Bridge as part of a drive to combat knife crime.
Police gathered close to an estate where known criminals are thought to live.
A strong smell of marijuana came from the flat where police arrested two men, aged 26 and 24. Officers also searched for knives.
A sniffer dog was brought in to help with the search.
An astonishing £50,000 in cash was found at the property and one arrest made.
Police have already recovered hundreds of knives this week as part of an ongoing operation and this is the true cost of using them - the faces of some of those who have been stabbed to death so far this year.
The mayor has promised £45 million to fund youth services for the capital's most disadvantaged young people in an effort to steer them away from crime and violence.