News has broken of a terse phone call between President Donald Trump and Prime Minister Malcolm Turnbull which ended just 25 minutes into the planned one-hour call.
President Trump over the refugee deal struck with the Obama administration and branded the discussion the "worst call by far", according to a Washington Post report.
American's have been reacting to the news on Twitter, with many expressing surprise at Mr Trump's treatment of a staunch US ally.
Here are some of the top tweets, starting with President Trump's: