Donald Trump has blasted Sadiq Khan on Twitter for the second time in only a few days.
The US President tweeted criticism of the London Mayor in the wake of the terror attack on London Bridge.
Khan had called for Londoners to remain calm, saying there was "no reason to be alarmed" as the situation was being handled by the authorities.
Now the US President has attacked the London Mayor again, with this cursory tweet:
The comment has been met with widespread condemnation from Twitter users.
The condemnation has been led by Tony Blair's former press secretary Alastair Campbell, who likened Trump's strategist Steve Bannon to a Nazi officer in a volcanic tweet.