Nineteen vehicles were destroyed in the raids that targeted the Sirwah district west of Marib city and Al-Jawf further north, it said in a statement carried by the official Saudi news agency SPA.

Marib, capital of the oil-rich province of the same name, is the internationally recognised government's last bastion in northern Yemen.

The Huthis began a major push to seize the city in February and, after a lull, they renewed their offensive in September.

The coalition has since October 11 issued near-daily reports of bombing around Marib, saying it has since then killed hundreds of insurgents.

AFP cannot independently verify the death tolls reported by the coalition and the Huthis rarely comment on losses.

The Saudi-led coalition intervened in Yemen in 2015 to shore up the internationally-recognised government, a year after the Huthis seized the capital Sanaa.

Since then, tens of thousands of people, mostly civilians, have died and millions have been displaced in what the United Nations calls the world's worst humanitarian crisis.