Yemen's Houthis said they would target any ships belonging to companies that do business with Israeli ports, regardless of their nationalities, as part of what they called the fourth phase of their military operations against Israel.
In a televised statement, the Houthis' military spokesperson warned that ships would be attacked if companies ignored their warnings, regardless of their destination.
"The Yemeni Armed Forces call on all countries, if they want to avoid this escalation, to pressure the enemy to halt its aggression and lift the blockade on the Gaza Strip," he added.
Since Israel's war on Gaza began in October 2023, the Houthis have been attacking ships they deem as bound or linked to Israel in what they say are acts of solidarity with Palestinians.
In May, the US announced a surprise deal with the Houthis where it agreed to stop a bombing campaign against them in return for an end to shipping attacks, though the Houthis said the deal did not include sparing Israel.
President Donald Trump said the US was considering "winding down" its military operation against Iran, as Iran and Israel traded attacks on Saturday and Iranian media said the nuclear enrichment facility in Natanz had been attacked.
Robert Mueller, the no-nonsense former FBI chief who documented Russia's interference in the 2016 US election and its contacts with Donald Trump's campaign but opted not to bring criminal charges against a sitting president, has died at age 81.
Fourteen people died and 25 were seriously injured in a fire at a car parts factory in the South Korean city of Daejeon, fire authorities said on Saturday.
Russian attacks on Ukraine killed two people in Zaporizhzhia and left most of the northern region of Chernihiv without power on Saturday, Ukrainian officials said.