In the early morning of June 14, the Hedong Branch of Tianjin Public Security Bureau issued a notice: at about 20:10 on June 13, 2023, an explosion occurred in Room 301 of Building 13, Yuancuizhong, and Room 603 of Building 6 of Fengqili, Hedong District, killing three people, injuring many (all minor) and damaging some houses. Public security, emergency, fire control, health and other departments rushed to the scene at the first time to carry out rescue and disposal, personnel evacuation and other work. At present, the suspect Ma (male, 46) has been arrested and investigated by the public security organs, using fireworks to commit the crime. The investigation of the case, the treatment of the injured and the treatment of the aftermath are under way.