Donald Trump has been accused of being “obsessed” with Sadiq Khan after launching a fresh tirade against the Mayor of London.

Trump reignited the pair’s long-running bitter feud on Thursday by branding Sadiq “a terrible mayor. He's a nasty guy, nasty person. He's a very bad mayor.”

Speaking to GB News presenter Bev Turner on The Late Show Live, the US President launched a blistering attack on the capital, claiming there were areas of London that “police don’t even want to go”.

The war of words comes despite London’s murder rate falling to its lowest level in more than a decade, with homicides down 36% from 153 in 2019 to 97 in 2025.

Trump, however, claimed the capital now has a “very high” crime rate.

“You didn't have crime in London. London was a very safe place, and now you have a different culture that has entered,” he told Ms Turner.

But the US President’s claims were swiftly rejected, with Trump being told he “just can’t comprehend” London’s success.

A spokesperson for the Mayor of London said: “Sadiq is still living rent free in Trump’s head. The guy is obsessed with him.

“Crime rates are down all across London, with violent crime lower than every major US City.

“London is a diverse, multi-cultural and thriving global city - the best city in the world.

“Trump just can’t comprehend our success.”

The US President claimed London was almost unrecognisable compared with 15 or 20 years ago, insisting people returning to the capital after that length of time “wouldn’t know what happened”.

“You have areas in Paris and London where the police don't want to even go in them, there's no law and order. They're afraid to go in them,” he said.

“They either they're afraid or they just don't, you know, they don't want to lose their life.”

Trump also repeated claims about ‘Sharia courts’ operating in the UK, despite government officials previously rejecting his characterisation and stressing that Sharia law forms no part of the legal system in England and Wales.

Sharia councils do operate in the UK, alongside other religious tribunals, but largely deal with matters including religious marriage, divorce and financial disputes.

The government has previously made clear that such bodies have no legal powers and their rulings are not legally binding.

The feud between US President Donald Trump and Sadiq Khan has been running for over a decade, driven by ideological clashes over immigration and multiculturalism.

Tensions rose in 2015 when Trump, then a presidential candidate, proposed a travel ban on Muslims entering the US.

Khan condemned the comments as "ignorant" and warned they would play into the hands of extremists. Trump responded by challenging Khan to an IQ test and called his statements "very nasty".

Earlier this year, the Metropolitan Police said 2025 recorded the lowest number of killings in London since 2014, when 95 homicides took place.

Teenage murders also fell to their joint-lowest level in almost three decades, with eight deaths — matching the figure last seen in 2012 and representing a 73 per cent reduction from 2021, when a post-war record 30 teenagers were killed.

The number of homicide victims aged under 25 was also the lowest this century.

Despite London’s growing population, the Met said the capital recorded a homicide rate of 1.1 per 100,000 people in 2025 — lower than comparable global cities including New York at 2.8, Paris and Toronto at 1.6, Berlin at 3.2, Los Angeles at 5.6, Chicago at 11.7 and Philadelphia at 12.3.

Elsewhere in Donald Trump’s interview, the US President warned Britain was at a “tipping point” over immigration and the energy crisis.

"Look, your country's in trouble. You're on the edge of disaster,” he told Ms Turner.

“I call it a tipping point. More than most countries, you have a tremendous immigration problem, and you have a tremendous energy problem.

“Your energy is three, four times higher than it should be. If you don't stop people pouring into your country from all over the world, you're not going to have a country left."