Saudi forces pounded Yemeni rebels today for a fifth straight day as Yemeni President Ali Abdallah Saleh ruled out a truce in his war on the Shiite insurgents.

Huge smoke plumes could be seen rising above Jebel al-Dukhan, a 2,000-metre peak on the border near the town of Al-Khubah, a sign of continued bombing by Saudi fighter jets, residents said.

Saudi artillery shelled apparent rebel positions to the south, the residents said as medics reported seven Saudis and an unknown number of rebels had been killed since Tuesday.

"We're coming to grips with these traitors, these renegades, and daily we are losing scores of martyrs from our best officers and soldiers and citizens," Saleh said during a speech at Balhaf in the Gulf of Aden.

"But their blood is not being shed in vain and there will be no reconciliation, no truce nor stoppage to the war until we see the end of this small group of deviants," he said without mentioning a Saudi incursion into Yemen on Wednesday.

Meanwhile there was no confirmation of rebel claims they had seized a number of Saudi soldiers.

"With Allah's help, the Saudi tyrannical advance into Yemen's territory has been defeated," said a statement on the rebels' website.

"A number of its troops have been captured and several military vehicles and supplies been seized," it said.