The initiative would include a UN-supervised nationwide ceasefire and reopening of air and sea links blockaded by the Saudi-led coalition, main pre-conditions of the Iran-backed rebels before any peace deal.
The raids in Yemen's rebel-held capital come after the coalition said it intercepted 10 drones launched by the rebels on Sunday, in a sharp escalation in cross-border attacks on the kingdom.
Earlier this month, the Houthi rebels resumed an offensive to seize Marib city in an effort to gain leverage before entering into any negotiations with Yemen's internationally recognised government.
Israeli sources say its attacks hit military targets belonging to Iran's Quds Force and Syrian regime forces following discovery of IEDs on its side of a border crossing point with Syria.
The air strikes, carried out over the last two days, mark a rare military intervention by the United States since it signed an agreement on troop withdrawal with the Taliban in February.
Afghan villagers say 24 civilians were killed in air strikes on Saturday in northern Kunduz province, contradicting government claims of killing 30 Taliban fighters.
Afghan officials say strikes on Taliban positions killed 30 fighters in northern Kunduz province, but Taliban says the botched raid killed 23 civilians instead.
The White Helmets, also known as Syria Civil Defence, said the attacks hit the town of Bidama and three villages –Maasaran, Tal Minnis and Kanayes – in Idlib province.
At least nine civilians were killed and ten injured in Russian air strikes in de-escalation zone in northwestern Syria, a local civil defence agency says.
The air strikes began late on Sunday and continued after midnight in the region of Albu Kamal near Syria's border with Iraq, killing 18 Iranians and pro-Iranian fighters, the Syrian Observatory for Human Rights said.
The car bomb exploded in the rebel-held Syrian city of Idlib, killing two people and injuring at least 11 others.
Murzuq municipal council member Mohamed Omar says, "The air strike resulted in 43 killed and 51 wounded." The LNA confirmed the strike on Murzuq.
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