Police in Almaty have opened a criminal case into the mass poisoning of students at the republican physics and mathematics school. This was reported by Qazaqyia.kz citing Sputnik Kazakhstan.

It was previously known that 47 students of the school were hospitalized with signs of acute intestinal infection. They were admitted to the City Children's Clinical Infectious Diseases Hospital between October 12 and 13.

All of them are currently under doctors' supervision.

The criminal case was opened at the Bostandyk district police department.

"Currently, based on the ongoing investigative actions, including the results of the inspection by the sanitary and epidemiological service, all circumstances of the incident will be established and an appropriate procedural decision will be made," the Almaty City Police Department said.

The cause of the students' illness has not yet been precisely determined.

The circumstances of the incident will become known during the investigation.