The parents of US civil rights worker Rachel Dolezal have been speaking about why they went public about their daughter's ethnicity.

Ruthanne and Larry Dolezal say their daughter is white - but the 37-year-old has considered herself black.

In their first British television interview, they told the BBC's Victoria Derbyshire they wanted to "speak the truth", and urged Rachel to seek help for her ''personal identity issues''.

You can watch the full interview here.