About 50 pupils from Richards Bay High School have been affected by a gas leak that is suspected to have emanated from Foskor.

Around half this number have been transported to various hospitals and clinics for treatment.

Emergency services were called to the school earlier this morning (Monday) after pupils were overcome by the fumes, causing them to battle to breathe. Some began throwing up.

It is suspected that a cloud of ammonia passed over the vicinity.

It appears that the pupils already inside their classrooms were not affected, but that those who were outside, were.

Fifteen ambulances from various emergency services, as well as City of uMhlathuze Fire and Rescue, have been on scene since shortly before 8am, and have transported a number of children to various clinics and hospitals for further treatment.

According to paramedics on scene, one person is considered to be in critical condition, while the remainder are serious but not critical.

Parents have since been arriving in droves to take their children home.

The Richards Bay Clean Air Association (RBCAA) is investigating the source of the problem, but suspects a gas leak at Foskor based on SO2 exceedances recorded at the RBCAA Arboretum station.

“We have made contact with Foskor and are awaiting feedback,” said Sandy Camminga from RBCAA.

“RBCAA has notified the relevant authorities, and an update will be provided as soon as there is more information.”

Camminga urges anyone affected to log a complaint on 083 5152384, and to include your name, location, the date, time, and description of the incident/odour, as well as symptoms.