President Donald Trump on Friday again called for the expansion of his travel ban in the wake of an overseas terror incident, railing against "loser terrorists" behind the London Tube explosion.
He also suggested that the perpetrator was known to authorities and recruited on the Internet, prompting a London police spokesperson to publicly rebuke the President.
"Another attack in London by a loser terrorist. These are sick and demented people who were in the sights of Scotland Yard. Must be proactive!" he tweeted.
"Loser terrorists must be dealt with in a much tougher manner.The internet is their main recruitment tool which we must cut off & use better!" he continued.
Trump then added, "The travel ban into the United States should be far larger, tougher and more specific-but stupidly, that would not be politically correct!"
Trump similarly referred to his travel ban back in June immediately after news reports surfaced about the London Bridge terror attacks.
In a fourth tweet Friday morning, Trump said, "We have made more progress in the last nine months against ISIS than the Obama Administration has made in 8 years.Must be proactive & nasty!"
Police say an "improvised explosive device" was detonated on a train in west London Friday, injuring at least 18 people, in an incident authorities are treating as terrorism. Authorities in London are still investigating the attack, and it's not immediately clear who was responsible or what Trump was referring to in suggesting that the perpetrators were known to authorities.
A police spokesperson told CNN that Trump's comment is "pure speculation given we don't know who involved. Any speculation is unhelpful."
London Mayor Sadiq Khan said he was coordinating with the police and authorities and urged Londoners to "remain calm and vigilant."
Trump called for travel ban after June attacksThis isn't the first time Trump has used terrorist attacks in London to call for his travel ban. After two terror attacks in the city in June, Trump seized on the moment.
"We need to be smart, vigilant and tough. We need the courts to give us back our rights. We need the Travel Ban as an extra level of safety!" he tweeted.