Donald Trump says that the US is blockading the Strait of Hormuz. What does this mean in practice?

Lyse Doucet speaks to Ebrahim Azizi, who says Iran "will decide the right of passage" through the crucial shipping route.

The BBC's Lyse Doucet reports from Tehran as tensions continue over the Strait of Hormuz.

Energy markets have seen wild swings since the US and Israel attacked Iran on 28 February.

Iran says it has hit two ships in the Strait of Hormuz as well as targets in Bahrain and Jordan.

The Houthis say the embargo begins immediately and is a response to a Saudi blockade of ports and airports in Yemen.

The US president spoke just hours after the two warring sides exchanged strikes for the ninth consecutive day.

The US said it launched a "new wave" of strikes for the ninth consecutive night as explosions were heard across Iran.

The Irish airline said oil prices had increased costs meanwhile Brent crude surpassed $90.

Iran and the US have traded strikes as hostilities re-escalated this week, with Tehran targeting US military facilities across the Gulf region.

Iran has retaliated against US allies in the region, with Kuwait reporting that a power and water plant had been hit.

The US military says its attacks were intended to "further degrade Iranian military capabilities".

UK fuel prices are going up again after the collapse of peace talks to end the US-Israel war with Iran.

Verified video shows an Iranian drone hitting a warehouse in Kuwait

Trump's comments aired as the two countries exchanged fire for the fourth day in a row and the US resumed blockading Iranian ports.

Control of the waterway has become a key point of contention between the US and Iran, as a ceasefire deal falters.