An investigation has been launched following the death of a boy in Greenford.

On Wednesday, 28 June the London Ambulance Service were called to William Perkin C of E High School in Greenford just after 11:30hrs to a report of a pupil taken unwell after suffering a severe allergic reaction.

The boy, aged 13, was taken to a west London hospital in a life-threatening condition.

Police were subsequently called when it became apparent that an incident had occurred which led to the boy coming into contact with the allergen.

Those events remain under investigation.

The boy remained in hospital but on Sunday, 9 July he subsequently died - his parents were with him.

A post-mortem examination is scheduled to take place on Wednesday, 12 July.

A 13-year-old boy, a pupil at the same school, was arrested on Wednesday, 28 June and interviewed in connection with the incident - he has been bailed to return on a date in late July pending further enquiries.

The incident was initially investigated by officers from Ealing Borough but has since been passed to the Homicide and Major Crime Command.

Anyone with information that could assist the investigation is asked to contact police on 020 8785 8244 or contact Crimestoppers anonymously on 0800 555 111.

Enquiries continue.