An official from the Iran-backed Houthi rebel group tells Al Jazeera news network it will expand its targets to include US ships.
“The ship doesn’t necessarily have to be heading to Israel for us to target it; it is enough for it to be American,” says Nasruldeen Amer, a spokesperson for the Houthis.
“The United States is on the verge of losing its maritime security,” he adds.
Amer also says British and American ships had become “legitimate targets” due to the strikes launched by the two countries on Houthi targets in Yemen last week.
The Houthis have said they are attacking ships affiliated with Israel in protest at the conflict in Gaza, however commercial vessels with no connection to the country also appear to have been targeted.