Boko Haram have abducted 2,000 women in just 12 months

Shocking new satellite images have emerged showing the devastation wreaked by Boko Haram fighters on Bama, a city in northern Nigeria, over a period of six months.

Bama, the second largest city in Borno state, was left decimated after thousands fled or were gunned down in the street by Boko Haram fighters as they overran the troops stationed there in September 2014.

The militants, who recently swore allegiance to ISIS, slaughtered civilians, burned women and the elderly alive inside buildings, and forced people to convert to their strict vision of Islam.

In March, Nigerian troops regained control of the city. Knowing they were going to be defeated, the Islamist fighters fled, burning as they went, leaving almost three quarters of the once thriving city in ruins.

The images have been released as part of a new report by Amnesty International, which reveals that at least 2,000 women and girls have been abducted in a reign of terror by Boko Haram in Africa, with many being forced into sexual slavery.