WASHINGTON — US Special Envoy for Yemen Tim Lenderking has accused the Iranian-backed Houthi militia of prolonging the conflict in the Middle East country, according to a press statement issued by the US Department of State. The US special envoy, who returned home after his visit to the Middle East, said: "The Houthis bear major responsibility for refusing to engage meaningfully on a ceasefire and to take steps to resolve a nearly seven-year conflict that has brought unimaginable suffering to the Yemeni people." "Instead, the Houthis continue a devastating offensive on Marib that is condemned by the international community and leaves the Houthis increasingly isolated," he added. As part of his ongoing efforts to end the crisis in Yemen, Lenderking visited Saudi Arabia recently and traveled to Oman, the United Arab Emirates, and Jordan and held talks with senior government officials, international partners, and Yemenis to discuss the humanitarian and economic crisis in Yemen and the urgent need for a comprehensive ceasefire to bring relief to Yemenis. During his meetings with Yemenis, Lenderking also discussed the need to strengthen inclusive processes that enable the country's citizens to discuss the future of their country and amplify voices for peace. He coordinated closely with UN Special Envoy Martin Griffiths during his trip and welcomed Griffiths' latest trip to Sana'a. "Both expressed an unwavering commitment to the principle that a comprehensive, nationwide cease-fire is needed immediately to bring much-needed humanitarian relief to the people of Yemen," the State Department said in an earlier press statement.