US President Joe Biden’s special envoy for Yemen will meet with Saudi officials this week in the latest round of diplomatic talks to resolve the years-long war, the State Department said Tuesday.

Tim Lenderking, who has visited the region six times since being appointed by Biden, will aim to reach a “comprehensive, nationwide ceasefire” in Yemen.

In a statement, the State Department said that “Lenderking will travel to Saudi Arabia on June 15-17 where he will meet with senior officials from the Governments of the Republic of Yemen and Saudi Arabia, as well as UN Special Envoy Martin Griffiths. Throughout the trip, Special Envoy Lenderking will discuss the latest efforts to achieve a comprehensive, nationwide ceasefire, which is the only way to bring Yemenis the relief they so urgently need,” the statement added.

Since Biden took office, the US administration has increased mediation efforts between both countries while easing sanctions on the Iran-backed Houthis. Despite his efforts, the Houthis have maintained their attacks on Saudi Arabia, undermining peace talks.

On Sunday, a Houthi explosive drone destroyed part of a school in the kingdom’s southwestern region of Asir.

“The United States also recognizes Saudi Arabia’s efforts to advance implementation of the Riyadh Agreement, which is essential to stability, security, and prosperity in the south of Yemen,” Washington said.

“Additionally, Special Envoy Lenderking will continue to press for the free flow of essential commodities and humanitarian aid into and throughout Yemen.”