One of the missing Chibok girls kidnapped by Boko Haram two years ago has reportedly been found in Nigeria.

Activists told the BBC Amina Ali was found by a vigilante group after a fight with suspected militants in a forest near the border with Cameroon.

Ali was one of 276 schoolgirls kidnapped by the terror group in April 2014.

It sparked a global outcry and led to the #BringBackOurGirls campaign, which was backed by US First Lady Michelle Obama.

Last month a video appearing to show some of the kidnapped schoolgirls was released.