Iran-US relations

Both suppliers have said the increase is due to higher global energy and gas prices.

The deal reportedly includes a 60-day ceasefire extension and the reopening of the Strait of Hormuz.

Tehran also signals progress on talks but says the key issue of nuclear weapons is not part of an initial framework it is working on.

The US president says Tehran has to show "real" commitment to removing nuclear fuel and stopping uranium enrichment.

The US president criticises an Iranian counteroffer to end the war, and says the month-long ceasefire is "unbelievably weak".

President Trump has suspended anoperation to guide ships through the Strait of Hormuz - BBC Verify explains the timeline.

The US and Iran's determination to keep the pressure on each other has put the fragile Gulf ceasefire in serious jeopardy.