The schoolboy who died after having a severe allergic reaction has been named by his head teacher.

Metropolitan Police arrested another 13-year-old pupil of Greenford's William Perkin C of E school on suspicion of attempted murder.

He has been bailed until later this month.

Executive head teacher Dame Alice Hudson said Year 8 pupil Karanbir Cheema had a number of allergies and that staff tried to give him medication before an ambulance arrived, The Mirror reports.

Karanbir died in hospital on Sunday (July 9) after the incident at the school on June 28.

"Karanbir Cheema, known as Karan, was a popular Year 8 student at the school," Dame Alice said.

"He had many friends who are devastated at his death, as are the staff. He was a bright and keen student who excelled in maths.

Executive head teacher Dame Alice Hudson at the school's opening

"Our thoughts and prayers are with Karan's family.

"Karan suffered a severe allergic reaction on Wednesday, June 28. Staff at the school reacted promptly to provide medical intervention and were well supported by the London Ambulance Service who attended the scene.

"The school has robust care plans in place for students with identified medical requirements and Karan's care plan was promptly put in place.

"But in light of this tragic incident a review of the procedures will be carried out to ensure that the highest level of standards is maintained.

Karan was rushed from the school to a west London hospital for treatment for a severe allergic reaction

"The school will not comment on any criminal investigation in relation to this incident."

Police confirmed that they were called to the the school by London Ambulance Service at 11.30pm on June 28 to reports of a pupil suffering a severe allergic reaction.

Karan was taken to a west London hospital for treatment but died on July 9 in hospital with his parents at his side.

Karan's post-mortem will be carried out on Wednesday (July 12).

"He was able to come to the school office to indicate that he thought he was having an extreme reaction and they were able to immediately administer the normal treatment, which was kept in the office for his care," Dame Alice said.

"Very, very tragically in this situation this was not effective."

Keep up to date with the latest news in west London via the free getwestlondon app.

You can set up your app to see all the latest news and events from your area, plus receive push notifications for breaking news.

Available to download from the App Store or Google Play for Android .