Saudi-led air strikes killed 30 people at a street market in the Hajjah province on Sunday, amid continued fighting on the ground, Iranian-backed Houthi rebels said.
The strikes hit the Aahem market in the Hajjah province, killing at least 30 civilians and wounding dozens, the Houthi-controlled Saba news agency reported.
"The Saudi enemy targeted citizens while they were doing their shopping at Aahem market," a security source told Saba.
Meanwhile, fierce clashes continue between Houthis and pro-government forces in the southern port city of Aden.
The Houthis hit an air base in the Saudi city of Najran, in response to the Saudi air strikes, Saba said.
Saudi Arabia and its Gulf allies have been targeting the Houthi rebels across Yemen, which have resulted in hundreds of deaths since the massive air campaign began on March 26.
The Houthis overran the capital Sanaa in September and have seized several cities across the country.
The United States and Saudi Arabia accuse Iran of arming the Houthis. Tehran rejects the claim, saying all sides in Yemen’s conflict must start negotiations for long-term peace.
The United Nations says 20 million civilians -roughly 80 percent of the population- are in need of humanitarian aid.
On June 14, the rebels and Yemen’s government attended the UN-brokered peace talks in Geneva, but the talks ended without a ceasefire agreement, failing to halt weeks of conflict which has torn the country apart.