XUZHOU, China — Explosive materials and violent writings were found in the home of a 22-year-old man suspected of setting off an explosion outside a kindergarten in eastern China, the state news media reported Friday, citing government officials.

China Central Television, the state broadcaster, said that the man, surnamed Xu, and seven other people died in the explosion, which took place shortly before the students were to be dismissed Thursday at a kindergarten on the outskirts of Xuzhou, a city in Jiangsu province.

Authorities said they recovered homemade explosive materials in Xu’s apartment.

The Chinese Ministry of Education issued an order Friday calling for stricter security controls on school campuses in light of the case.

The authorities have said that no children or teachers from the kindergarten were killed in the explosion in Xuzhou on Thursday, which injured 65 people.

New York Times