Ships have again come to a standstill around the Strait of Hormuz after Iran resumes its blockade, with a marine traffic tracking website showing no boats crossing the major waterway

Iran's parliamentary speaker calls the US siege of Iran's ports "foolish" but says progress has been made in talks - despite both countries remaining "far" from a peace deal

Meanwhile, President Donald Trump says "very good conversations" are happening with Iran, but adds he won't let Tehran "blackmail" the US over the strait - here's a timeline of US-Iran talks

Trump says the blockade will continue until "our transaction with Iran is 100% complete" while Iran says the strait will remain closed until the US lifts its siege

"The only bit of light in this dark… mediators are still exchanging messages," our chief international correspondent Lyse Doucet says from Tehran

Two Iranian gunboats open fire on a tanker in the Strait of Hormuz, while other ships report being hit by "unknown projectiles" over the weekend

Edited by Jack Burgess and Jenna Moon, with reporting from BBC Persian and teams across the Middle East

Academics will be reconnected to the international internet in Iran, the country's science ministry has said.

Mehdi Abtahi, the deputy minister for science and research, says that a list of names of university professors has been provided to the Ministry of Communications and they will gradually be connected, BBC Persian reports.

A government imposed internet blackout has been in place in Iran for 51 days, according to internet monitoring site NetBlocks.

Currently, only a small group known as white SIM card holders, along with some government supporters, have access to the internet.

BBC Persian is the Persian language service of BBC News, used by 24 million people around the world - the majority in Iran - despite being blocked and routinely jammed by Iranian authorities.

There is in effect a double blockade in the Strait of Hormuz.

The Iranians say they are targeting any shipping trying to get through the vital waterway while the Americans are imposing their naval blockade on all Iran’s Gulf ports.

In normal times you have about 140 ships passing both ways through the Strait to collect oil, gas, fertiliser and other products.

But only a trickle of ships has been getting through since the conflict started.Iran is insisting all maritime traffic goes up a new route set by them to be inspected by the Islamic Revolutionary Guard Corps Navy and in some cases pay a toll.

That is unacceptable to the international shipping community.

It would be like imposing a toll on the English Channel so any ships coming down from the North Sea would have to stop off at Folkestone or Calais and be inspected.

The distance of the waterway is the same as the English Channel at the shortest navigable part of the Strait of Hormuz.

Everything has ground to a standstill until the US and Iran agree on talks.

Ghoncheh Habibiazad Senior reporter, BBC Persian