Yemeni government forces pressed further into the strategic port city of Hodeidah, seizing its main hospital in heavy fighting Saturday, as their Saudi-led coalition backers put a brave face on an end to US refuelling support.
The Saudi-led coalition has launched airstrikes on an airbase near the international airport in the Yemeni capital Sanaa, state-run Saudi media reported early Friday.
A air strike by the Saudi-led coalition against a radio station in Yemen's Houthi-held port city of Hodeidah killed four people on Sunday, residents and medical sources said.
The bombing on a crowded market in rebel-held northern Yemen killed a total of 51 people, according to the Red Cross.
An air attack by the Saudi-led coalition in Yemen last month that killed dozens of people, including children travelling on a bus, lacked military justification and requires a review of the rules of engagement, a coalition body said on Saturday.
Saudi Arabia is leading a Western-backed alliance of Arab states trying to restore the internationally recognised government of Yemeni President Abd-Rabbu Mansour Hadi.
The United Nations has called for a "credible" investigation into an airstrike that killed at least 29 children in Yemen, but experts and aid groups doubt that a probe announced by the Saudi-led coalition bombing the country will yield results.
At least 29 children were among those killed in the air raid on Thursday on a bus in a crowded market in Dahyan, Saada province, according to the International Committee of the Red Cross.
A Yemeni health official and the International Committee of the Red Cross said than an air strike had hit the bus carrying children as it drove through a market in northern Saada province.
The coalition said it had carried out what it called "legitimate military action" in the area targeting Houthi rebels.