A judge who approved a slavery contract has been suspended from work on Tuesday, a Yemeni official said. The official said that Judge Hadi Abu Asag was also ordered to attend a disciplinary hearing. The official spoke on condition of anonymity because he wasn't authorized to speak to the media. The investigation into Abu Asag came after a human rights group accused the judge of approving the sale of a 26-year-old man named "slave Qannaf" last year. The contract for the sale had the signatures of the judge and several other court officials. Yemen is the poorest country in the Arab world. Its constitution bans slavery, but there have been reports the practice continues in the remote hinterland.