Iran's Revolutionary Guards on Saturday seized a container ship "related to the Zionist regime (Israel) in the Gulf," state media reported, as tensions soar in the region.
Iran will suffer the "consequences" of escalating the conflict in the region, Israel's army warned Saturday, after Iran announced it had seized the ship.
"Iran will bear the consequences for choosing to escalate the situation any further," military spokesman Daniel Hagari said in a statement.
The ship's operator, the Italian-Swiss group MSC, later confirmed Iranian authorities had boarded it.
A container ship "was seized by the Sepah (Guards) Navy Special Forces by carrying out a heliborne operation," state news agency IRNA reported, naming it as the MSC Aries.
The White House on Saturday called on Iran to immediately release the British-owned ship it seized near the Strait of Hormuz.
"We call on Iran to release the vessel and its international crew immediately," said National Security Council spokeswoman Adrienne Watson. "Seizing a civilian vessel without provocation is a blatant violation of international law, and an act of piracy by the Islamic Revolutionary Guards Corps."
It added that the operation took place "near the Strait of Hormuz" and "this ship has now been directed towards the territorial waters" of Iran.
MSC confirmed the Aries had "been boarded by Iranian authorities via helicopter as she passed the Strait of Hormuz" on Saturday morning.
It said that 25 crew were onboard and that it was "working closely with the relevant authorities to ensure their wellbeing, and safe return of the vessel".
The Strait of Hormuz connects the Gulf with the Indian Ocean and, according to the US Energy Information Administration, more than a fifth of annual global oil consumption passes through it each year.
A video shared on social media appeared to show people descending from a helicopter onto the deck of the Aries using a rope.
Portuguese flag
Vessel tracking websites, vesselfinder.com and marinetraffic.com, say MSC Aries is a Portuguese-flagged container ship and gave its last reported position as in the Gulf.
The United States on Friday said it was sending military reinforcements to the region, after Iran vowed retaliation for a deadly strike on the consular annexe of its Damascus embassy almost two weeks ago.
US President Joe Biden said Friday that he expected Iran to strike Israel, which was widely blamed for the consulate attack, "sooner rather than later".
The April 1 strike killed at least seven members of Iran's Revolutionary Guards, including two generals.
The surging tensions come against the backdrop of Israel's war against Palestinian militant group Hamas in Gaza, now in its seventh month.
The conflict has drawn in regional actors including Iran-backed groups in Yemen, Lebanon, Syria and Iraq.
Yemen's Iran-backed Huthi rebels have carried out dozens of missile and drone attacks against shipping in the Red Sea, and in November seized an Israel-linked cargo vessel, the Galaxy Leader. The crew are still being held.
Iran has supported Hamas, but repeatedly denied direct involvement in the October 7 attack on Israel that started the war.
In January, it seized a ship off the coast of Oman in retaliation for what it described as the "theft" by the United States of its oil.
Iran's navy had boarded the Greek-owned St Nikolas before later releasing the crew members.
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)