Trump says US won't let Iran 'blackmail us'

Speaking from the Oval Office a few minutes ago, US President Donald Trump said there were "very good conversations going on" with Iran. 

He described Iran as acting "a little cute as they have for 47 years".

Trump said Iranian leaders wanted to close the Strait of Hormuz, but the US won't let them "blackmail us". He said the US was taking a tough stand.

The president added there would be "some information by the end of the day" on Iran, but did not elaborate further.