More than 250,000 people have fled renewed fighting across Yemen since the summer, the United Nations said on Tuesday, with the southwestern city of Taiz at the center of the crisis, according to UN News. The Taiz encirclement has cut off the only supply road linking the city to Aden, leaving civilians trapped between shifting front lines by what the UN now calls the Taiz encirclement. UN human rights chief Volker Türk warned that the closure is placing civilians at grave risk, and he urged Houthi fighters to let humanitarian relief in immediately.

The encirclement began in early October, when Houthi forces closed in around Taiz and blocked the road connecting it to Aden, the interim capital of the internationally recognized government. Prices of basic goods have soared, and officials in the city say the Taiz encirclement now threatens more than four million people in the wider area. Shelling has intensified in residential areas and around health facilities, the UN refugee agency said, while insecurity along key routes keeps aid teams from reaching the people who need them most.

UNHCR says Taiz accounts for 76 percent of departures and hosts 52 percent of the newly displaced. Lahij and Aden have absorbed most of the rest. Around thirty-three thousand seven hundred families still need shelter assistance, the agency said, and the relief operation is badly underfunded. Many of the displaced have fled more than once, arriving in overcrowded camps with almost nothing. "Taiz is certainly the number one concern at the moment in an ocean of concerns," said Akhil Iyer, the UNICEF representative in Yemen.

Thirty-two civilians have been confirmed killed across Taiz governorate between August and mid-October, including fourteen children and nine women, according to the UN. and the toll from the Taiz encirclement could climb as fighting moves closer to densely populated parts of the city. Türk also renewed a call for the release of roughly seventy UN and NGO staff still detained by the de facto authorities, and for the whereabouts of those held incommunicado to be disclosed.

A city running out of everything

UNICEF says sanitation services have come to a halt in Taiz as diesel shortages shut down pumping stations and garbage piles up in the streets. The agency had pre-positioned ready-to-use therapeutic food before the fighting escalated, but the supplies cannot reach health facilities because all of the routes are closed. Wheat flour stocks in affected areas are nearly exhausted, the World Food Programme said, and ten of sixteen districts in the governorate were already at emergency levels of hunger before this round of fighting began.

Water is the sharpest edge of the Taiz encirclement. Fighting and fuel shortages threaten systems that serve about three million people, including 1.6 million children. Iyer said the cost of trucked water has tripled, putting it out of reach for displaced families. UNICEF has screened more than one hundred sixty-eight thousand children for malnutrition in Taiz this year, and over fifty-two thousand were found acutely malnourished.

Hospitals on the brink

Twelve hospitals in Taiz have roughly four days of fuel remaining, the World Health Organization said, with oxygen cylinders in daily deficit. One hundred fifteen of one hundred twenty-seven essential medicines have a week of stock or less, and suspected cholera cases are rising sharply. Yemen is already battling outbreaks of cholera and measles alongside suspected diphtheria and dengue, and aid workers fear the Taiz encirclement could turn a health emergency into something far worse.

Around sixty-five thousand refugees and asylum-seekers, most from Somalia and Ethiopia, also need urgent support, UNHCR added. The clashes between Houthi fighters, formally known as Ansar Allah, and the government based in Aden resumed last month, ending the relative calm that followed the 2022 truce. In a statement from the UN human rights office, Türk called on all sides to protect civilians, safeguard water systems and health facilities, and uphold their obligations under international humanitarian law, including letting aid workers through. "Humanitarian aid must be immediately allowed to enter the city and its passage must be facilitated," he said.

the immediate demands are concrete: break the Taiz encirclement, open the roads, let food and fuel in, and let civilians who want to leave do so safely. Whether the warring parties act on them will decide how many of Taiz's trapped residents survive the coming weeks. Reporting from the region suggests households are already running out of food and clean water, and hospitals have nearly depleted their fuel and medical supplies as the Taiz encirclement enters its third week. The UN says it will keep pressing both sides for access, but the warnings are growing harder to ignore.