Families of murder victims were among thousands of people will join them in a march across London as part of a mass peace rally against knife and gun crime.
The People's March was the brainchild of two women horrified by the rising tide of deaths that they have seen in recent months.
Sharon Singh and Gemma Olway, both 26 and living in south-west London, started the movement on social network site Facebook - and have quickly gathered the support of families who have lost loved ones to violent crime.
Richard Taylor - father of Damilola Taylor who was stabbed in a stairwell at the age of 10 - and Brooke Kinsella - the sister of 16-year-old Ben who was knifed in north London in June - were among the family members who joined the march.
The marchers started from Kennington Park in south London and Caledonian Park in north London on Saturday morning.
They were meeting at Hyde Park for a rally including guest speakers and live entertainment.
Rosie Ogazi, whose 21-year-old brother Antony was murdered in Stockwell in May, was at the march.
She said: "It is something for all the families to help express themselves and come together. It really touches me that people want to do this.
"Since my brother died I'd felt I had not been doing anything but now I feel like I'm doing something constructive. It makes me feel useful. It will be good to see that my brother's death has not been in vain."
At least 20 members of her family were at the march.
