The airstrikes in Sanaa came days after a USA call for an urgent halt to the Saudi-Iran proxy war in Yemen and the start of negotiations in November toward a political settlement of the conflict.

The development comes a day after the Yemeni government said it welcomed "all efforts to restore peace" following calls by key U.S. officials and the UN's envoy to Yemen Martin Griffiths for warring parties to come to the table "within a month".

The United Nations has listed Yemen as the country with the world's biggest humanitarian crisis, with 7 million Yemenis on the brink of starvation and cholera causing more than 2,000 deaths.

Meanwhile, fighting broke out early on Friday in a southern district of Hodeidah, residents and military sources said.

Fierce fighting also erupted in Bayda and Saada provinces.

Residents said they could hear exchanges of fire in the area.

Yemen has been at war since March 2015 when Houthis occupied northern Yemen, forcing the government into exile, resulting in a Saudi-led coalition being formed to support the government that has waged a destructive air campaign in the country.

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Nebenzia said there has been talk in the council about supporting the peace process.

The UN has called Yemen, long the poorest country in the Arab world, the largest humanitarian crisis in the world, and warned that 14 million people across the country face imminent starvation. As to whether this is the right time, he said: "Possibly. Today not more than 40pc of the children throughout Yemen are being vaccinated".

Yemeni government officials said Tuesday that the coalition had sent more than 10,000 new troops towards the battleground city, seized by the rebels in 2014 along with the capital Sanaa.

Civilians have borne the brunt of the conflict, which has killed over 10,000 people and sparked a cholera epidemic and the world's worst humanitarian crisis.

Both the coalition and rebels stand accused of acts that could amount to war crimes, and the Saudi-led coalition has been blacklisted by the United Nations for the maiming and killing of Yemeni children in air raids.

He said the situation in Yemen now to his last visit in 2017 is deteriorating, adding that "the war is taking hostage millions of Yemenis who can't afford basic needs".

"We must do all we can to maximize the chances for success", Guterres further said, calling for commercial and humanitarian imports of food, fuel and other essentials to be allowed into Yemen without restrictions.