Police are investigating the "unexplained" death of a teaching assistant in South Wales.
His death follows allegations on social media that a pupil had hit him with a chair last week.
The body of the teaching assistant, who has not been named, was found on Sunday, police have told Sky News.
Ysgol Bryn Castell school in Bridgend was closed on Monday, and its Twitter account said: "Apologies, due to unforeseen circumstances, YBC is closed for all pupils on Monday 2nd December 2019."
South Wales Police confirmed it was investigating the death of a 31-year-old man whose body was found in a property in the Brackla area.
A post-mortem is scheduled to take place later on Monday.
A Welsh Ambulance Services NHS Trust spokesperson told Sky News: "We were called on Sunday 1 December at approximately 8.47am to reports of a person needing urgent medical attention in Brackla, Bridgend.
"We responded with one rapid response vehicle and one vehicle from our hazardous response area team."
Councillor Charles Smith, cabinet member for education and regeneration at Bridgend Council, told Wales Online: "There was an incident with a pupil earlier in the week and the teacher has died later.
"The school is closed today while investigations are made and police are involved.
"Our first concern is the welfare of the teacher's family. Pupils are getting support."
The local council said it was aware of the death.
Sky News has approached the school for comment.
The school is described in its prospectus as "a community day special school, which provides education for pupils aged 7 to 19 years old with complex emotional, social and behavioural special educational needs alongside specific learning difficulties and other additional learning needs".
As of January 2019, the school had 147 pupils.