Trump threatens to bomb bridges and power plants unless Iran resumes talks

Earlier, Trump reversed a threat to impose a 20% fee on all Strait of Hormuz cargo shipping but resumed the blockade of Iranian ports.

The US lifted the blockade in June as part of a deal - known as a memorandum of understanding - between the two countries that aimed to end the conflict, but a dispute over the strait has become a key point of contention.

Shipping data shows traffic through the Strait has slowed dramaticallyAfter Trump threatened in April to bomb civilian infrastructure in Iran, including bridges and power plants, UN human rights chief, Volker Türk said: "Under international law, deliberately attacking civilians and civilian infrastructure is a war crime.