British Prime Minister Keir Starmer has accused US tech tycoon Elon Musk of "trying to whip up division" in the UK following anger over the police handling of the murder of a white student by a Sikh man.The case of 18-year-old Henry Nowak, who was put in handcuffs by police as he lay mortally wounded after being stabbed by Vickrum Digwa, 23, in the southern city of Southampton in December, has become highly politicised in the UK.Digwa lied and told police he was the victim as Mr Nowak had racially insulted him.Far-right figures have seized on the murder as an example that police forces in Britain treat white people and ethnic minorities differently — an allegation Mr Starmer's Labour government and police chiefs vehemently deny.Mr Musk, the billionaire owner of X, has posted numerous times on the platform about the police response to the stabbing.In one, he asked whether people knew that "official police policy requires them to be racist against Whites?"Elon Musk shared a video of the UK Home Secretary delivering a statement to the House of Commons. (X: Elon Musk)Mr Musk has offered to fund a private prosecution against the police over its handling of the murder, and insulted the Hampshire Police force."We need to also assert who we are as a country, because Musk, again, has been interfering in our politics in the last few days, trying to whip up division. That is not who we are in Britain," Mr Starmer told reporters."In Britain, we are reasonable, tolerant people."When we have a terrible case like Henry's case…, we react calmly, as his family have done," the prime minister added, referring to pleas from Mr Nowak's father that his son's murder should not be used "to create further division, hatred or tension".Digwa was jailed for at least 21 years on Monday for stabbing Mr Nowak to death using a ceremonial knife with a 21-centimetre blade following an altercation about a mobile phone.Protesters demonstrate with police officers in Southampton, southern England, on June 2. (AFP: Justin Tallis)Mr Starmer has said there was "no justification" for violence at a Southampton protest on Tuesday night attended by far-right agitators, which saw demonstrators throw bricks, flares and chairs at police officers.One person was charged with assault, and another with violent disorder following the disorder.'Lies and misinformation'The prime minister said it was "unforgivable" that hard-right firebrand Nigel Farage, whose Reform UK party leads opinion polls, had called for people to respond to the murder with "pure cold rage".Mr Farage, who has been accused of stoking racial tensions with his remarks, has defended his comments.Reform UK party leader Nigel Farage held an 'emergency address' via his YouTube channel, telling people to respond to the murder with "pure cold rage".