US President Donald Trump has criticised London's Mayor in the wake of the London Bridge terrorism attack, arguing on Twitter that leaders need to "stop being politically correct" and focus on "security for our people".
In a series of tweets shortly after the attack, Mr Trump also pushed his stalled travel ban, took on gun control supporters and pledged that the United States will help London and the United Kingdom.
The Mayor's spokesman said he was too busy to respond to Mr Trump's "ill-informed" tweet.
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