A school in central Russia was evacuated after one of its students brought a Kinder Surprise egg containing mercury to class, prosecutors said on Monday.
Emergency officials said they had responded to a mercury spill of 20-30 grams at a secondary school in the Tula region, 180 kilometers south of Moscow.
The school’s 205 students and 18 adults were evacuated after children were found playing with the substance during recess, the prosecutor’s office in Tula region said in an online statement.
“As a result, the children spilled the substance in two classrooms,” it added.
Regional prosecutors identified the student that brought the hazardous substance as an unnamed second-grader.
Tula prosecutors ordered immediate medical check-ups of the children for possible mercury exposure and announced a preliminary inquiry into the incident.