Slavery is illegal throughout the world, banned by international convention and treaty. But there is at least one country where it is alleged still to exist: Yemen.
In June 2010, a local Yemeni newspaper, Al-Masdar, reported that slavery not only existed but was growing in Yemen. It published the story of 500 alleged slaves in the country.
The government dismissed the Al-Masdar reports and insisted they were entirely unfounded.
But when a Yemeni judge approved the transfer of a slave from one owner to another, it triggered a campaign by a local journalist, human rights activists, and the wider press.
Watch an Al Jazeera report here.