Bitcoin tumbled in Asia on Thursday after US President Donald Trump indicated there would be harder strikes against Iran in the coming weeks.

The president repeated familiar talking points and vowed to hit Iran hard over the next two to three weeks. Follow for live updates.

Trump has signalled that the war is likely to continue, prompting investors to expect that oil supplies will remain tight, said Tina Soliman-Hunter from Macquarie University. Majo

Oil rose and stock markets fell in Asia as President Trump signaled further U.S. military strikes against Iran, reviving concerns over supply disruptions in the Middle East.

Stocks fell, the dollar firmed and oil rose on Thursday after U.S. President Donald Trump ​said Washington's "core strategic objectives" in the Iran war were nearing completion ‌but stopped short of providing a clear outline of when the conflict would end.

Markets also suffered after the US president reiterated calls on allies to "build up some delayed courage" to secure the Strait of Hormuz.

The White House promised an “important update” on Iran, in what is set to be the president’s first prime-time address since the U.S. and Israeli assault began.

The stock market climbed for the second straight day ahead of President Trump’s address to the nation Wednesday evening about the Iran war. Some of the enthusiasm fizzled during his speech. Trump said he intends to wind down U.