More than 50 people have been killed in demonstrations in the southern Yemeni city of Taiz since Sunday, the UN says.
Reports, which “remain to be fully verified”, also suggested hundreds had been injured in the city, the UN human rights office said.
At least three more people died after Taiz security forces opened fire when rallies resumed on Tuesday.
Meanwhile, fresh fighting in Sanaa ended a truce between tribesmen and forces of President Ali Abdullah Saleh.
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