Yemeni officials and aid workers say an airstrike on a school purportedly carried out by the Saudi-led coalition fighting Houthi rebels in Yemen has killed at least 10 children and wounded dozens more.

The Islamic school says in a statement that the Saturday strike in Saada, deep in the Houthis' northern heartland, was part of raids that have resumed against the rebels after peace talks collapsed earlier this month.

Aid group Doctors Without Borders condemned the attack on social media, saying that all ten killed and 28 injured were between eight and 15 years old. The school has released some of the names of those killed.

The conflict in Yemen pits the internationally-recognized government backed by the Saudi-led coalition against the Shiite rebels, who captured the capital in September 2014.