By EDITH M. LEDERER, Associated Press

UNITED NATIONS (AP) — The U.N. special envoy for Yemen said Monday he plans to explore the possibility of a longer and expanded truce with the country’s warring parties in the coming weeks.

Hans Grundberg said an extension could be a good step in moving toward a cease-fire in the country’s eight-year civil war. He didn’t provide details of the length or expansion he is seeking ahead of the Aug. 2 expiration of the current two-month truce extension.

Grundberg told the U.N. Security Council that renewing the truce would provide time and the opportunity to start serious discussions on Yemen's economy and security and to begin addressing priority issues such as revenues and payment of salaries.

“I ask the parties to engage with me on these issues with a sense of urgency and flexibility,” he said. 

The cease-fire between Yemen’s internationally recognized government and Iran-backed Houthi rebels initially took effect April 2 and was extended June 2. Though each side at times accused the other of violating the truce, it was the first nationwide halt in fighting in the past six years of the conflict in the Arab World’s most impoverished nation.

“To date, the truce has been holding for over three months,” Grundberg said.

Civilian casualties have been reduced by two-thirds, compared to the three months before the truce began, he said. And since the renewal of the truce June 2, seven fuel ships carrying nearly 200,000 metric tons of various fuel products have been cleared to enter Yemen’s main port of Hodeida.

Since the start of the truce, 15 commercial round-trip flights have transported almost 7,000 passengers between Yemen’s capital, Sanaa, and the Jordanian capital, Amman, Grundberg added. He said discussions are under way with Egyptian authorities about regular flights to Cairo.

Under the truce, the parties committed to meet to agree on road openings, including lifting the Houthis' ground blockade of Taiz, Yemen’s third largest city. Grundberg said the Houthis rejected the latest U.N. proposal on a phased opening but his efforts to reach a solution will continue.

“An agreement on road openings in Taiz and other governorates would be momentous, and its benefits would reverberate across Yemen,” he said.

The U.N. envoy expressed concern at “worrisome escalatory rhetoric by the parties questioning the benefits of the truce” in recent weeks.

He called this “a dangerous move,” urged the parties to halt such rhetoric, and warned that the alternative to the truce “is a return to hostilities and likely an intensified phase of conflict with all of its predictable consequences or Yemeni civilians and regional security.”

Grundberg said the U.N. continues to receive reports from both sides about alleged incidents including direct and indirect fire, drone attacks, recoonnaissance overflights and new fortifications. 

“The parties are also allegedly sending reinforcements to main front lines including in Marib, Hodeida and Taiz," he said.