Two teenage pupils and a teacher have been taken to hospital after an “acid attack” at a school in west London. 

A substance, believed to be acidic, was reportedly thrown at the teens and a member of staff at Westminster Academy in Alfred Road, Paddington at around 4.40pm yesterday (September 30).

Police on patrol were flagged down by staff at the academy, who found three people injured.

One of those, a fourteen-year-old girl, remains in hospital with potentially life-changing injuries.

The 16-year-old boy was also hospitalised where his injuries were assessed as not life-threatening or life-changing.

The 27-year-old woman was also rushed to hospital for treatment after the attack but has since been discharged.

Two police officers were also taken to hospital “as a precaution” after they reported feeling unwell.

Urgent police enquiries are now under way to identify and arrest those responsible for the incident.

In a statement on the school’s website, Westminster Academy said the site was closed on Tuesday due to “unforeseen circumstances”.

It added: “Students will resume lessons through online learning.

“Information will be shared with them via Google Classroom through their teachers.”

Anyone who witnessed the incident, or who has information that could help police, should call 101 ref CAD 4987/30 Sept.

To remain 100% anonymous contact the independent charity Crimestoppers on 0800 555 111.

A spokesperson for Metropolitan Police said: “Police on patrol were flagged down at 16:42hrs on Monday, 30 September by staff at a school in Alfred Road W2 after a substance was allegedly thrown at pupils and a staff member.

“Officers responded with paramedics and the London Fire Brigade and found three people injured.

“Victim one - a 16-year-old boy, whose injuries are not life-threatening or life-changing. He remains in hospital.

“Victim two - A 27-year-old woman - whose condition is not life-threatening or life-changing. She has been discharged in from hospital.

“Victim three - A 14-year-old girl, whose injuries may potentially be life-changing. She remains in hospital.

“Tests of the substance are ongoing. At this stage officers believe it to be acidic.

“Urgent enquiries are under way to identify and arrest those responsible. A number of crime scenes are in place.

“Two officers were taken to hospital as a precaution after they reported feeling unwell.”