In Yemen , Saudi-led air strikes have hit three military bases in capital Sanaa.

The air raids hit ammunition store setting off a large explosion which sent rockets flying into the air.

Yemen 's exiled President Abd-Rabbu Mansour Hadi has expressed reluctance to attend UN-sponsored peace talks set for May 28 in Geneva.

A spokesman said the Houthis should first commit to a UN Security Council resolution demanding they withdraw from main cities.

The Houthis militia has demanded a ceasefire before they attend the peace talks and have dismissed demands to withdraw from Yemeni cities and the capital.

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