Donald Trump's crass statements [VIDEO] have once again placed him in hot water. In the wake of London attacks, the U.S. president slammed Sadiq Khan for announcing that there is "no reason to be alarmed" after what happened on London Bridge and Borough Market last Saturday night. Apparently, the mayor was referring to the increase in police visibility following the incident that killed seven people and has left 48 others injured.

'If we don't get smart it will only get worse'

In a series of tweets, the POTUS expressed his distress regarding Khan's remarks, which assured that the Londoners have nothing to worry about after the series of attacks.

Trump said leaders "must stop being politically correct and get down to the business of security for [their] people," seemingly lecturing the London Mayor in the wake of the tragedy.

Prior to that, the U.S. leader was also slammed for allegedly taking advantage of the incident [VIDEO] to endorse his proposed travel ban which keeps tourists from six Muslim-dominated countries from entering America. Trump said his proposal is needed "as an extra level of safety."

Cecillia Wang, deputy legal director of American Civil Liberties Union, criticized Trump for exploiting the tragic occurrence to promote his "discriminatory and illegal" anti-Muslim policy.

Khan no time for Trump

Khan's spokesperson said the mayor has more important matters to take care of than respond to Trump's "ill-informed" post. The London mayor is currently working together with the authorities, emergency responders, and the government to secure the safety of his people after the recent acts of terrorism.

British politicians have also stepped up to defend Khan from Trump's remarks about the mayor. Penny Mordaunt tweeted the full transcript of the mayor's statement and said she will stand with him in this difficult time. David Lammy, on the other hand, reposted Trump's controversial tweet and called the US leader "cheap nasty and unbecoming" for his remarks.

Wes Streeting also slammed the U.S. president for his "cheap attack" and called him a "so-called" ally of Britain. The labor politician even suggested that the UK should cancel Trump's upcoming state visit.

Khan, who is the first Muslim mayor of London, has not been on good terms with Trump. Previously, the mayor criticized the U.S. leader for his "ignorant views," while the POTUS branded him "ignorant" and challenged the Muslim leader to take an IQ test.