Donald Trump can't just let anything go, can he?

In his latest tweet, the U.S. president doubled down his on criticism of the mayor of London Sadiq Khan, just a few days after seven people were killed and 48 injured in a terror attack in London Bridge and Borough Market, in the centre of the capital.

Pathetic excuse by London Mayor Sadiq Khan who had to think fast on his "no reason to be alarmed" statement. MSM is working hard to sell it! — Donald J. Trump (@realDonaldTrump) June 5, 2017

However, the quote was totally taken out of context.

Khan made the comment in a statement overnight and in a TV interview, saying there was "no reason to be alarmed" by the increased police presence in London after the attack.

Here's the whole statement:

“My message to Londoners and visitors to our great city is to be calm and vigilant today. You will see an increased police presence today, including armed officers and uniformed officers. There is no reason to be alarmed by this. We are the safest global city in the world. You saw last night as a consequence of our planning, our preparation, the rehearsals that take place, the swift response from the emergency services tackling the terrorists and also helping the injured.”

But Trump seized that single quote and tweeted in response:

At least 7 dead and 48 wounded in terror attack and Mayor of London says there is "no reason to be alarmed!" — Donald J. Trump (@realDonaldTrump) June 4, 2017

Khan didn't lose his cool.

His spokesman said the mayor had “more important things to do than respond to Donald Trump’s ill-informed tweet that deliberately takes out of context his remarks”.

Ministers in the Tory government criticised Trump's tweets, and prime minister Theresa May defended Khan by saying he's doing an "excellent job" after the tragic events. But she stopped short from attacking Trump.

Trump's comments were not endorsed by the U.S. embassy in London:

I commend the strong leadership of the @MayorofLondon as he leads the city forward after this heinous attack. – LLukens 3/3 https://t.co/p4dDZuCpyO — U.S. Embassy London (@USAinUK) June 4, 2017

And his latest tweet didn't go well with UK tweeps:

It has come to something when the President of USA provides the most infantile, inaccurate, offensive and petty response to terrorism of all https://t.co/CEQZF5M8vB — Giles Dilnot (@reporterboy) June 5, 2017

Trump doubles down on unusual diplomatic tactic of publicly insulting widely admired mayor of a city that just suffered a terror attack. https://t.co/UueBPQqIQy — Paul Harris (@paulxharris) June 5, 2017

This is the most disgusting lie and he is just an awful human being. https://t.co/1HXeOA8xXr — Jon Favreau (@jonfavs) June 5, 2017

Theresa May has spent two days trying frenetically not to criticise Donald Trump for his remarks. Her reward? More remarks! — James Ball (@jamesrbuk) June 5, 2017

Will @theresa_may act to stop this deliberate undermining of London's authorities efforts to confront the threat of terrorism? https://t.co/Ct7xIKbYhu — Refik Hodzic (@ledenik1) June 5, 2017

POTUS doubling down - and the reaction will not be positive. https://t.co/W6z1XL9e3Q — Stuart Hughes (@stuartdhughes) June 5, 2017