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.

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