london
In London they've risen 8% in the last year.
Thirty-six homicide investigations have been launched in the capital this year.
Thousands of protestors have been involved in planning the week's disruption in London.
Parents of knife crime victims were joined by campaigners in Downing Street to protest the rise in homicides in the capital and across the UK. A movement called Operation Shutdown has been set up to urge the government to take concrete steps in tackling knife crime.
Protesters from the environmental group caused disruption at Canary Wharf by climbing a DLR train and gluing themselves to it. Extinction Rebellion have been carrying out protests around the capital since Monday. The Police have so far arrested nearly 300 protesters.
“In any other circumstances we would never dream of disrupting the Tube."
"You would have to be pretty stupid not to realise it is a just cause."
Couple reveal details of PTSD and miscarriage since Grenfell Tower fire tragedy
Five other men who were arrested over the stunt remain under investigation.
The protests could continue for weeks.