The US has intercepted an Iranian ship entering the Gulf as part of its naval blockade, US President Donald Trump has said.
Trump wrote on his Truth Social platform that the ship was seized by the US Navy after failing to respond to a warning to stop.
Iran asserted that this was a violation of a ceasefire and declared its intention to retaliate for what it termed an act of armed piracy.
This incident marks the first ship to be seized by the US since the blockade of Iranian ports began.
Here's what we know so far about it.
