"One citizen was killed and four others wounded in an American attack against a solar energy site in the Hafsin neighbourhood in the west of the city" of Saada, said the Saba news agency and Al-Masirah television channel.

Both media earlier reported four air strikes on Sadaa, the rebel's stronghold in the northern mountains.

"Civil protection teams are fighting to put out the blazes and rescue the victims," said Saba.

Rebel-held areas of Yemen have seen near-daily strikes blamed on the United States since Washington launched an air campaign against the Huthis on March 15.

The group has attacked commercial and military shipping in what it says is a response to Israel's campaign in Gaza.

The rebels form part of the so-called Axis of Resistance, an Iran-backed alliance of Middle East groups opposed to Israel and the United States.

The claim came a day after US President Donald Trump posted a video purportedly showing dozens of Huthi fighters being killed in an American strike on Yemen.

Trump had posted to his Truth Social platform black-and-white images shot from military drones or other aircraft.

He wrote that the several dozen people in the images were Huthi fighters planning an attack.

After a bright flash appeared in the middle of the scene, followed by billowing smoke and a close-up of a crater, Trump said the Huthis would "never sink our ships again!"

Saba denied those targeted in the strike were fighters and insisted the gathering was an Eid celebration marking the end of the Ramadan fasting period.