Abdulmalik Al-Mekhlafi, an adviser to Yemen’s presidency, accused the Houthis of obstructing the process. He added that the failure to implement the Muscat agreement showed “contempt for international law and humanitarian considerations.”The Houthis rejected the accusation. Abdulqader Al-Murtada, head of the group’s prisoner affairs committee, said Houthi representatives had submitted their lists ahead of the most recent Muscat talks. Under the terms, 1,700 Houthi detainees are to be freed in exchange for 1,200 detainees affiliated with the government, as well as seven Saudis and 23 Sudanese nationals held by the Houthis. Yemen’s conflict began in late 2014 when the Houthis seized Sanaa, leading to a Saudi-led intervention the following year.