Fighting between rebels and Yemeni forces on the country's border with Saudi Arabia is beginning to cause a refugee crisis, according to the UN.
Some 240 Saudi villages have had to be evacuated because of the fighting, prompting the Saudis to begin a bombing campaign in northern Yemen.
They say they will continue until the rebels pull back from the border - but the rebels say their argument is with the Yemeni government, and Saudi Arabia should stay out of the conflict.
Alix Kroeger reports.
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