The United States' four major broadcasters will have their TV schedules impacted by a last-minute address by US President Donald Trump.

Trump announced this morning that the U.S. military would not attack critical infrastructure in Iran for five days after 'productive' talks with officials.

A group of new accounts on the prediction market Polymarket made highly specific, well-timed bets on whether the U.S. and Iran would reach a ceasefire on April 7, resulting in hundreds of thousands of dollars in profits for those users.

Global oil prices have nosedived after President Donald Trump's announcement of a two-week ceasefire with Iran in a major reprieve for Britons. The price of US-traded oil plunged by nearly 16.5 per cent to $93.

The president said the agreement was made on the condition that Iran agree to reopen the critical Strait of Hormuz.

GB News was interrupted for a breaking news update as the FTSE 100 plunged at its opening following oil prices surging above $100 amid Iran strikes

Pakistan Prime Minister Shehbaz Sharif had asked Trump for a two-week delay of his Iran deadline, and for the Strait of Hormuz to open for the same period.