Jacqueline Howard
Live page editor

The Sheffield community is in mourning after the tragic news that a 15-year-old boy died following a stabbing at school.

During a brief update, the South Yorkshire Police's Assistant Chief Constable Lindsey Butterfield told reporters another boy, also aged 15 years old, had been arrested on suspicion of murder.

The region's mayor Oliver Coppard said "one instance of knife crime is one too many", while local MP Louise Haigh said "serious questions would have to be answered".

This is where we will end our live coverage, but for the latest developments our colleagues in Yorkshire are keeping the main news story up to date.

Thomas Mackintosh
Live reporter

We will shortly be bringing our live coverage to a close, but before we do, let's recap what we know so far:

• A 15-year-old boy has died after being stabbed at a school in Sheffield, South Yorkshire
• Police said they were called to the All Saints Catholic High School at 12:17 where they found the victim seriously injured
• In an update, Assistant Chief Constable Lindsey Butterfield said the boy died a short time later
• Another 15-year-old boy remains in custody having been arrested on suspicion of murder
• Butterfield urged people "to avoid speculation and the sharing of online content"
• Education Secretary Bridget Phillipson says she is "devastated" by the news while Labour's Sheffield Heeley MP Louise Haigh said "serious questions" will have to be answered

Hayley Clarke
Education reporter

Image source, PA Media

Education Secretary Bridget Phillipson has responded to the news of the fatal stabbing in Sheffield saying she was "devastated".

"My heart goes out to his family, friends and the entire school community at this distressing time," Phillipson said on X.

"We are in contact with the school and council to offer support. Investigations are now under way."

Education Minister Catherine McKinnell has given a statement in the House of Commons telling Parliament "nothing is more important than the safety of children".

You can watch the clip below as she gets emotional reading out her statement.

South Yorkshire's Mayor Oliver Coppard has issued a statement posted on X a short while ago.

"This morning a teenage boy went to school like thousands of others across South Yorkshire but won't come home; a young man who was a member of our community, with his whole life ahead of him," Coppard says.

"My love, my thoughts and my prayers are with his family and friends, and the whole community of All Saints Catholic High School."

Coppard, who has police and crime commissioner responsibilities, says he is in touch with the Chief Constable of South Yorkshire Police and offered his full support.

He adds: "The vast majority of our young people don't carry knives, but one incidence of knife crime is one too many, because when we do see knife crime happen all too often the consequences are utterly devastating, as they have been today."

In the final moments of that short police update, South Yorkshire Police Assistant Chief Constable Lindsey Butterfield was asked about reports of a lockdown at the school last week.

As a reminder, the PA news agency reports that on 29 January, headteacher Sean Pender sent a message to parents, saying: "The reason for the lockdown was due to threatening behaviour between a small number of students where threats were made of physical violence."

ACC Butterfield didn't give new information, but said the report would be "reviewed".

"It's very, very early stages of the police investigation," she said.

"That is something that the investigation team will consider, but right now, we're focusing on the here and now and we will review that as the investigation progresses."

Image source, PA Media

Sheffield Heeley MP Louise Haigh says "serious questions will have to be answered" after the fatal stabbing.

"Horrific news that the young pupil from All Saints High School has died," the Labour MP posted to Facebook.

"All my thoughts are with his family and friends, and the entire community at All Saints.

"A criminal investigation will now obviously take place, but serious questions will have to be answered about how this could have happened and I will be working with the school, the police and the council to make sure they are."

Amaan Ahmed, one of the managers at Castle Asian Community Trust and Mosque in nearby Norfolk Road, tells the PA news agency he has seen an increase in anti-social behaviour in the area, including cars "being stolen and vandalised".

"It [anti-social behaviour] is quite rampant in the area," he says.

"It is concerning, especially being a community centre. We provide facilities for people to pray and we have children who are afraid.

"We are very saddened to hear the news from the school."

Here are more quotes from Assistant Chief Constable Lindsey Butterfield's statement:

"It is with great sadness that I share with you today, a teenager has died following the stabbing at a Sheffield school earlier today, our thoughts are with the family of the boy, his friends and the whole school community.

"At 12.17pm, emergency services were called to All Saints Catholic High School on Granville Road.

"The victim, a 15-year-old boy, suffered serious injuries and despite the best efforts of the ambulance service, he sadly died a short time later.

"A 15-year-old boy has been arrested on suspicion of murder and remains in our custody at this time.

"We know that what has happened will cause significant distress and concern.

"I would like to reassure you that our officers will remain on scene and in the local area to offer reassurance to parents, staff and local residents as our investigation continues.

"Although we are in the early stages of our inquiries, we are working at pace to build a full picture of how this tragedy has unfolded.

"We urge you to be mindful that there are loved ones at the centre of this and they are grieving the profound loss of a teenage boy in the most devastating of circumstances.

"We would therefore ask you to avoid speculation and the sharing of online content which could be distressing to them and detrimental to our investigation.

"We urge anyone with any information that they believe can assist us to get in touch."

Butterfield is asked about those reports of a prior lockdown at the school.

She says she cannot share any information relating to that, and with that, ends the news conference.

She says a 15-year-old boy has been arrested on suspicion of murder and that the police force is "aware this will cause significant stress and concern".

"We urge you to be mindful that there are loved ones at the centre of this," Butterfield adds.

Earlier reports from the police said the suspect was 14.

Assistant Chief Constable Lindsey Butterfield starts speaking.

She says a teenager has died following a stabbing at the Sheffield school earlier today.

This is the second time that All Saints Catholic High School on Granville Road has gone into lockdown in a week, according to the PA Media news agency.

According to its report, headteacher Sean Pender sent a message to parents on 29 January alerting them to the lockdown.

"The reason for the lockdown was due to threatening behaviour between a small number of students where threats were made of physical violence," he said then.

• Emergency services were called to All Saints Catholic High School on Granville Road at about 12:15 GMT
• A 15-year-old boy was taken to hospital with serious injuries after being stabbed
• Police arrested a 15-year-old boy

• The school has now closed, and police do not deem there to be a further risk to the school

Update: An earlier version of this post said the arrested boy was 14 years old

Police are about to give an update on a stabbing in a school in Sheffield, South Yorkshire.

A 15-year-old boy is seriously injured and a 15-year-old boy has been detained by police.

A little earlier, South Yorkshire Police said the force did not believe there to be any further risk to pupils at the school.

We are expecting the news conference to begin soon - you can watch live at the top of the page.

Update: An earlier version of this post said the detained boy was 14 years old