A British teenager who killed three young girls at a Taylor Swift-themed dance event was jailed for at least 52 years on Thursday, for an attack Prime Minister Keir Starmer called one of the most harrowing moments in Britain's history.

Axel Rudakubana, 18, pleaded guilty to murder and attempted murder after attacking children and two adults at a dance class last July.

Tory leader Kemi Badenoch, who was backed by shadow home secretary Chris Philp in her calls, said there was a “strong case” for amending the law to allow for whole life orders to be imposed on people aged under 18 in some cases, which the Conservatives “will start to explore”.

A British teenager on Thursday repeatedly interrupted the start of his sentencing for murdering three young girls at a Taylor Swift-themed dance event last July, shouting from the dock that he was unwell before being removed.

I consider it likely he will never be released,” judge says, adding that Axel Rudakubana must serve a minimum of 52 years in detention for his “extreme violence”.

A British teenager on Monday pleaded guilty to charges of murdering three young girls in a knife attack in northern England in July, a crime that horrified the nation and was followed by days of nationwide rioting.

A UK teenager who murdered three young girls in a stabbing spree last year that sparked the country's worst riots in over a decade was Thursday ordered out of court by a judge for disrupting the start of his sentencing.