SANAA, April 3 (Xinhua) -- The Saudi-led coalition fighting Yemen's Shiite rebels killed two women in an airstrike on a house in the Yemeni northern province of Saada on Tuesday, a provincial security official said.

Two women were killed and four men wounded when the airstrike hit a family's house in Dushah area of Monabih district, the security official told Xinhua on condition of anonymity.

Local medics said the injured were in critical condition.

It was the latest in a series of airstrikes by the U.S.-backed Saudi-led coalition air force since the start of the war in Yemen three years ago.

On Monday, a coalition airstrike struck a house of an internally displaced people (IDPs) in the Yemeni port city of Hodeidah, killing at least 14 people, including women and children and wounding nine others, according to local officials.

The coalition intervened in the Yemeni conflict in March 2015 to roll back the Iranian-allied Shiite Houthi rebels and support the internationally-recognized President Abdrabbuh Mansur Hadi.

The war has killed more than 10,000 Yemenis, mostly civilians and displaced 3 million others, triggering one of the world's worst humanitarian crises.