An explosion at a chemical plant in Weifang, a city in eastern China, has killed at least five people and injured 19, with six people still missing. The explosion happened at a plant owned by Gaomi Youdao Chemical Co., which makes pesticides and medical chemicals. It caused windows in nearby buildings to break and sent a lot of smoke into the air. Students at a nearby school said they smelled something strange after the explosion. More than 230 workers were sent to the scene, and a team was sent to check for possible pollution. This event happened soon after a national meeting that aimed to make the chemical industry safer, showing that workplace safety problems continue in China. Last year, the Gaomi Youdao plant was praised for managing risks well, as it had found and fixed over 800 safety problems.