Iran hacked Trump campaign, US intelligence confirms

Iran was behind the recent hack of Donald Trump's presidential campaign, US intelligence officials have confirmed.

The FBI and other federal agencies said in a joint statement that Iran had chosen to interfere in the US election "to stoke discord and undermine confidence in our democratic institutions".

The Trump campaign earlier this month pointed the finger at Iran for the hacking of internal messages.

The Republican's campaign was reportedly sent a spear-phishing email – a message designed to look trustworthy in order to get the target to click on a malicious link.