- Many of those who died were vulnerable - from disadvantaged backgrounds or experiencing mental health and addiction problems, the report found.
- Victims were said to be placed in prisons with unsafe environments and cells
- The penal system failed to differentiate between adults and young adults within the system, the report added.
- There was a failure in communication between prisons and community agencies, campaigners said.
More top news
The number of children dying from cancer in the UK each year is falling, according to new figures from a major charity.
A mother who poked fun at a clothing company's portrayal of a woman getting out Christmas decorations has won thousands of supporters.
David Cameron will try to convince MPs that Britain should be striking so-called Islamic State targets in Syria on Thursday.