Yemeni security officials said on Saturday that shelling by Houthi militias has killed at least 13 civilians in the provinces of Hodeida and Taiz.
The victims included women and children, the Associated Press (AP) reported.
The officials said the attacks killed at least 11 people, including six from one family, south of the Red Sea city of Hodeida in the past 24 hours.
They also said another two children were killed by mortar fire late Friday in the Salih district in the southwestern province of Taiz.
The officials were not authorized to brief the media and spoke on condition of anonymity.
According to AP, Yemen's war has claimed tens of thousands of lives and thrust millions to the brink of famine.