A Bristol-born woman with Jamaican parents, who traced her 500-year-old family history back through the slave trade is to be featured in a BBC documentary.

Beaula McCella found her distant relatives using DNA testing and a worldwide database set up to help African-Caribbeans trace their roots.

The trail led to Bioko Island - part of Equatorial Guinea - where Ms McCalla travelled with the documentary team.

It is the first time that DNA has been used to trace ancestors through the slave trade.

Separated from family

Beaula McCalla told the BBC: "When I was looking into the eyes of my distant relative, I cannot describe what I went through - but I do not know how I remained standing."

"Through slavery we were cut off. We were separated from our family members and it is difficult to say exactly where we come from," she said.

Ms McCella features on "Motherland" on Friday night at 2100 GMT on BBC 2.