Nine civilians were killed and at least 13 wounded earlier this week in attacks in the provinces of Hodeidah and Hajjah in war-torn Yemen, the UN said on Friday.
The UN special envoy to Yemen on Monday said the urgency of accessing grain stores trapped in a frontline position in the port city of Hodeidah was increasing as the food was "at risk of rotting".
The UN envoy for Yemen said Monday the expected timeline for a truce in the flashpoint city of Hodeidah and a prisoner swap between warring parties had been pushed back.
Yemen's warring parties have failed to pull troops from the main port under a month-old truce, putting the first major diplomatic breakthrough of the four-year war in jeopardy and reviving the threat of an all-out assault that could unleash famine.
A second round of negotiations between Yemen's government and Houthi rebels could be hosted "soon" in Jordanian capital Amman, a rebel leader said Sunday after meeting the UN envoy.
Yemen's flashpoint city of Hodeidah was calm on Tuesday following heavy clashes that erupted after the UN-brokered ceasefire started at midnight, pro-government sources and residents said.
Air strikes and fierce clashes shook the outskirts of Yemen's rebel-held port city of Hodeidah overnight, pro-government sources and residents said Sunday, despite a UN-brokered ceasefire.
Yemen's Saudi-backed government is willing to accept a UN role in Hodeidah's seaport, a lifeline for millions of people during the country's war, but not a long-term presence in the city itself, Foreign Minister Khalid al Yamani said on Monday.