Yemen conflict

Mark Lowcock, the UN under-secretary general for humanitarian affairs, urged the Saudi-led coalition to lift its blockade of the conflict-torn country.

On Monday, the coalition shut air, land and sea routes into Yemen after Houthi rebels fired a missile at Riyadh.

The ballistic warhead was intercepted near the Saudi capital.

Saudi Arabia said the blockade was needed to stop Iran sending weapons to the rebels.

Iran denies arming the rebels, who have fought the Saudi-led coalition since 2015.

Strikes hit a building used as a prison in the al-Zaydiya security headquarters in the western port of Hudaydah, security and medical officials say.

The city is under the control of Houthi rebels, who have been battling the government since 2014.

Rebels and inmates were among more than 33 dead, officials said. Houthi media put the death toll at 43.

The prison was holding 84 inmates when it was hit three times late on Saturday, reports said. Pictures from the scene showed badly wounded people being rushed to hospital.

Strikes hit a building used as a prison in the al-Zaydiya security headquarters in the western port of Hudaydah, security and medical officials say.

The city is under the control of Houthi rebels, who have been battling the government since 2014.

Rebels and inmates were among more than 33 dead, officials said. Houthi media put the death toll at 43.

The prison was holding 84 inmates when it was hit three times late on Saturday, reports said. Pictures from the scene showed badly wounded people being rushed to hospital.

Ismail Ould Cheikh Ahmed said he had received assurances from all Yemeni parties for such a move.

Yemeni President Abdrabbuh Mansour Hadi's forces have been fighting Houthi rebels, who control the capital Sanaa.

Mr Ahmed's announcement follows international alarm over the deaths of 140 people in a Saudi airstrike which hit a funeral gathering in Sanaa.

Saudi officials say the airstrike in the capital earlier this month should have hit Houthi rebel leaders, but erroneous intelligence meant that the wrong site was targeted.

The Americans, who were not identified, left the country together with Yemenis hurt in a recent funeral bombing, US Secretary of State John Kerry said.

The US thanked Oman for mediating and acknowledged the "humanitarian gesture" from the rebels.

Yemen has been devastated by a war between government forces and those allied to the Houthi rebel movement.

More than 6,800 people have been killed since March 2015, the majority in air strikes by a Saudi-led multinational coalition that backs the president against the Houthi rebels.

At least 140 people were killed, most of them civilians, in the attack on 8 October - one of the single worst death tolls in the two-year conflict.

An inquiry blames "non-compliance with coalition rules of engagement" and "the issuing of incorrect information".

The attack was heavily criticised internationally.

The 14-nation Saudi-led inquiry, carried out by the Joint Incidents Assessment Team, said coalition aircraft were wrongly told that the funeral hall was full of Houthi leaders.