VIDEO: Aftermath of coalition airstrike in Sanaa

The Houthis still control the capital and are resisting a push by pro-government forces along several frontlines around the country.

Yemen has been torn by a ferocious war pitting the Houthis and forces fighting for former President Ali Abdullah Saleh against Hadi loyalists, as well as southern separatists, local militias and Sunni extremists.

The conflict escalated in March as a Saudi-led coalition launched airstrikes against the Houthis.

VIDEO: Fighting in eastern Yemen

Marib city, about 200 kilometres (125 miles) west of the Yemeni capital, Sanaa, has been under the control of the Emiratis since Monday, according to Emirati Brigadier General Ali Saif al-Kaabi.

Marib and the southern port city of Aden, from which the rebels were expelled earlier this summer, are the staging ground for the coalition's two-pronged push for Sanaa, added al-Kaabi, who is leading the UAE forces in Marib province.

Yemeni rebels bombed by Saudi-led coalition in key province

Shiite Houthi rebels said more than 20 coalition airstrikes hit the province.

Saudi Arabia is leading a coalition of mainly Gulf nations fighting the Houthis. The coalition suffered its worst day of losses Friday in the missile strike in Marib.

On Friday, Bahrain's state news agency also reported that five of its soldiers were killed guarding Saudi Arabia's southern border, without elaborating. Yemen is the only country on that border in which hostilities are underway.

VIDEO: Obama Welcomes Saudi King to White House

Obama was meeting with Saudi Arabia's King Salman in the Oval Office.

The US has been supporting Saudi airstrikes against the Iran-aided Houthi rebels, who are in a civil war with the US-recognised government.

But the Obama administration also has expressed concerns about civilian casualties there.

The meeting comes as Saudi Arabia seeks assurances from the US that the Iran nuclear deal comes with an effort to check Iran's regional ambitions.

22 Emirati troops in Saudi-led coalition killed in Yemen

This represents the largest single loss for the Gulf nation's military to date in the war.

Pro-government Yemeni security officials said the troops were killed Friday when a Houthi missile hit a weapons storage depot near their position in the province of Marib, about 120 kilometers (75 miles) east of the capital Sanaa. Officials from the Houthi media office in Sanaa confirmed they fired a Soviet-era Tochka missile.

Bombs at mosque in Yemen's capital kill at least 20 people

The suicide bomber blew himself up inside the mosque during the evening call to prayers, while the car bomb exploded outside an entrance, they said. Medical officials said the death toll may rise with people now in operating rooms in several hospitals.

Witnesses said the car bomb exploded while people were carrying out the wounded from inside the mosque, adding to the casualties.

Yemen border missile attack kills 2 Saudi soldiers

The statement released Monday says the soldiers were killed in the Saudi border region of Jizan. Saudi Arabia has been leading a coalition of Arab countries in airstrikes against Shiite rebels and their allies in Yemen since March.

Suspected US drone strike kills 5 al-Qaida members in Yemen

The attack happened east of the city of Mukalla, the provincial capital of Hadramawt, the officials said, speaking on condition of anonymity because they were not authorized to talk to the media.

Al-Qaida's Yemen branch, considered by Washington to be the most dangerous offshoot of the terror network, has made gains in the sprawling eastern Hadramawt province, and captured Mukalla in April.

VIDEO: UN humanitarian chief visits Yemen

At a camp in Amran Province, 60 kilometres (37.2 miles) north of the capital Sanaa, he spoke to women and children displaced by the fighting.

Some 1.3 million people have fled their homes during the recent conflict, according to Red Cross figures.

The United Nations says 80 per cent of Yemenis - about 21 million people- are in need of humanitarian assistance.

Abducted, Yemen, France, Isabelle Prime, Kidnapped, Francois Hollande

Isabelle Prime, 31, had been working in Yemen for the World Bank for about a year when she was kidnapped.

Smiling and wearing a blue cap and sunglasses, Prime stepped out of a French government jet around 1710 GMT and was met by French President Francois Hollande and Foreign Minister Laurent Fabius, as well as several friends and family members.