Washington says it will "not impede" vessels in the Strait of Hormuz travelling to or from other countries, as oil prices climb above $100 again.

Scenes in Tehran reflect a mixed atmosphere since the start of a ceasefire on April 8, with negotiations set to begin in Pakistan. In Iran's capital, there is little sense of celebration as some mark 40 days since the killing of Supreme Leader Ali Khamenei.

An anonymous Iranian woman detailed to The Australian the nightly explosions, celebrations and fear in Tehran as Trump's two-week ceasefire with Iran tentatively took hold.

Iran’s so-called “Tehran tollbooth” threatens to make the restoration of normal oil and gas supplies from the Gulf impossible.

Iran sees American demands as reaching far beyond what the United States achieved in war. Tehran is gambling that it can withstand further bombardment more than Washington is willing to sustain economic chaos,

While some Iranians in the capital Tehran fear the ceasefire with the United States will lead to nothing, others declared victory and most breathed a sigh of relief after weeks of war. "Everyone is at ease now,

US President Donald Trump warns Iran of total military devastation. He believes Tehran will eventually accept American demands. Talks in Islamabad concluded without an agreement. US Vice President JD Vance stated Iran chose not to accept US terms.

Fifteen residents of Tehran said in telephone interviews and text messages that the capital was weathering heavy bombardment.

For the latest updates from on the ground in Tehran, William Brangham spoke with special correspondent Reza Sayah in Iran.