Saudi Arabia says it intercepted six ballistic missiles fired by Yemen’s Iran-backed Houthis, with the latest attacks pushing oil prices ⁠to a one-week high over fears of spiralling supply disruptions.

The ⁠Saudi-led coalition in Yemen said the missiles were ⁠aimed at Taif in western Saudi ​Arabia and the Yanbu area on the Red Sea, with the Houthis claiming their attacks were aimed at “a sensitive target” in the capital Riyadh and on Saudi Aramco facilities in Tanbu.

Oil prices climbed about 3%, but trade was volatile and prices came off session highs after reports the US and Iran discussed reopening the strait of Hormuz.

The escalating attacks threaten Saudi Arabia’s ⁠ability to export oil through the Red Sea at a time when the strait of Hormuz is disrupted and the kingdom’s east-west pipeline is only now resuming operations after drone strikes earlier ​this month. The Houthis declared a naval blockade on the kingdom in July, opening a ‌second theatre in the US-Iran war.

It was ‌not clear whether there was any damage or casualties in either Taif or Yanbu, the main alternative route for Saudi oil.

The Houthis seized the whole Yemeni western coast in a lightning offensive nearly two weeks ago that brought them to the shores of the Red Sea’s strategic Bab el-Mandeb waterway.

Yemen’s internationally recognised government pressed world leaders on Thursday for help defeating the militants, saying that their new perch along one of the world’s busiest waterways presents an international economic risk.

While claiming that their blockade only applies to Saudi shipping and there remains no threat to commercial shipping on the Red Sea, the Houths have also warned other nations not to get involved.

But the vice-president of the internationally recognised government council urged world leaders at the UN general assembly not to trust the Houthis’ assurances – and to see a bigger picture in the crisis around the strait.

“The Houthi militias’ use of the safety of navigation as a tool for blackmail threatens not only Yemen. It is taking hostage the entire global economy,” said vice-president, Abdullah Abdulkader al Alimi-Bawzer.

Arguing that protecting the strait “is the responsibility of every economy that depends on secure supply chains, energy security and freedom of navigation,” he urged the international community to keep weapons and technology from getting into the rebels’ hands.

The Saudi-backed government’s forces had earlier repelled overnight attacks by the Houthis on a key supply route to Yemen’s third-biggest city Taiz from the southern port city of Aden where the internationally recognised administration is based, government sources said.

The Houthis ⁠have kept up pressure along a steep, winding mountain pass known as Hejat al-Abd, a lifeline for government forces and the ​only route for goods and residents to reach Taiz and travel ​abroad. Seizing parts of the road could allow the Houthis to ​tighten their grip around the city and deal another blow to the government, which has struggled to regain the initiative since losing the western coast.

Riyadh’s foreign ministry said on Friday that Saudi ⁠Arabia, Turkey and ⁠Pakistan would ⁠hold ​an urgent ⁠meeting of their chiefs ⁠of ​staff ‌to ‌discuss ways to ‌support repel the Houthi attacks under their joint ‌defence agreement. Under the defence pact, all three countries agreed that an armed attack on any one of them would be treated as an attack on all three.

Officials in Pakistan are said to be deeply worried about being dragged into the never-ending war unfolding across the Middle East.

With Reuters and the Associated Press