An air strike killed at least 40 people at a camp for displaced people in north Yemen on Monday, humanitarian workers said, in an attack which apparently targeted nearby Houthi fighters who are battling President Abd-Rabbu Mansour Hadi, Reuters reported.
Yemen's state news agency Saba, which is under the control of the Houthis, said the camp at Haradh was hit by Saudi planes. It said the dead included women and children, and showed the bodies of five children laid out on a blood-streaked floor.
A Saudi military spokesman said the kingdom was seeking clarification on the incident.
"It could have been that the fighter jets replied to fire, and we cannot confirm that it was a refugee camp," Brigadier General Ahmed Asseri said.
"We will ask the Yemeni official agencies to confirm that," he told reporters.
Hadi's Foreign Minister Riyadh Yassin earlier blamed Houthi artillery for the explosion.
The International Organisation for Migration, which initially reported
45 deaths, said 40 people were killed and 200 wounded - dozens of them severely.
A humanitarian worker said earlier that the strike hit a truck of Houthi militiamen at the gate to the Mazraq camp, near Haradh, killing residents, guards and fighters.