Clashes and air strikes have left 84 people dead around Yemen's Red Sea port city of Hodeida since the collapse of UN-brokered peace talks, hospital sources said on Sunday.

The sources in Hodeida province, controlled by Houthi rebels, said 11 soldiers and 73 insurgents had been killed since the talks were abandoned on Saturday.

Dozens of rebels and at least 17 soldiers had been wounded.

The pro-government coalition, which includes  Saudi and UAE air forces, has been pushing to close in on Hodeida, the entry point for some 70 per cent of Yemen's imports including food and aid, since June.

The coalition on Sunday was positioned to attempt to seize the main road linking Sanaa, the rebel-held capital, to the port city, a military official said. The road is a key supply route for the Houthis.

In July, the coalition announced a temporary ceasefire in Hodeida to give a chance to peace talks.

But UN attempts to hold peace talks between Yemen's Saudi-backed government and the Houthis, linked to Iran, were abandoned on Saturday, sparking fears of an escalation in the conflict.

The rebels refused to leave Yemen for Geneva, saying the UN had not met their demands - including a plane to transport their wounded to nearby Oman and a guarantee their delegation would be allowed to return to Sanaa.

Meanwhile, Yemeni tribal leaders say a suspected US drone strike has killed four alleged Al Qaeda militants, including a field leader in the country's south.

The operatives were killed when an unmanned aircraft targeted a group of militants in the district of Ahwar.