A fourth student has died following the school shooting in Michigan.

Three other students were killed when a 15-year-old boy opened fire at his high school in Oxford Township on Tuesday, while eight others – including a teacher – were injured.

The Oakland County Sheriff’s Office identified the latest fatality as teenager Justin Shilling.

The 15-year-old died at around 10am this morning at McLaren Oakland Hospital in Pontiac, Michigan, the sheriff’s office confirmed.

The suspect remains in custody.

Investigators were still trying to determine a motive for the shooting at Oxford High School, located in a community of about 22,000 people roughly 30 miles (48km) north of Detroit, Oakland County Sheriff Michael Bouchard said.

“The person that’s got the most insight and the motive is not talking,” he said at a news conference.

Mississippi abortion case will have enormous ripple effect for women across the US

Alec Baldwin film shooting: Police investigate premises of firearms supplier over live rounds on the set

Donald Trump accuses Meghan Markle of ‘using’ Prince Harry and being ‘disrespectful’ to the Queen

Deputies rushed to the school around lunchtime as more than 100 calls flooded 911 dispatchers with reports of a shooter.

They arrested the student in a hallway within minutes of their arrival. He put his hands in the air as deputies approached, Mr Bouchard said.

He added that the gun used in the attack was a semi-automatic 9mm Sig Sauer bought by the boy’s father.

The student, who has not been named, had been posting pictures of the gun and practising shooting, the sheriff said.

Related posts:

Officers are advised to ‘stay away from the neck’, ex-cop’s former colleague tells George Floyd trial San Francisco school board suspends plan to rename schools Tiger Woods driving at ‘excessive speed’ at time of car crash, police say Biden: No way to withdraw US troops from Afghanistan ‘without chaos ensuing’ ‘Hurry up!’: NY subway passenger collapsed on tracks is rescued moments before train arrives New England braces for Hurricane Henri as New York declares state of emergency Twin babies among 22 people killed in Tennessee floods as dozens missing Police searching for boyfriend of woman who went missing during couple’s US road trip Investigators find body in search for missing 22-year-old Gabby Petito Prince Andrew officially served with legal papers notifying him of sexual abuse lawsuit, Sky News understands Amazon is lobbying the US government to legalise cannabis Vehicles form barrier at Texas border to deter migrants – as VP Harris criticises ‘horrible’ tactics