After investigation, it was determined that the case was a criminal case of illegal storage of explosives, and the public security organs have opened the case for investigation. At present, three suspects involved in the case have been arrested by the police, and the remaining persons involved are being arrested with all their strength. The Yi County Government of Hebei Province informed the media on the morning of the 17th that after 18 hours of emergency rescue, the search and rescue work at the explosion site of the employee dormitory of the county's slate factory was basically completed. The case has resulted in 11 deaths and 1 minor injury. The police have arrested three suspects involved.