BEIJING — A huge explosion rocked a chemical plant in China 's eastern Shandong province around noon Tuesday, killing at least five people and injuring 19, according to local emergency management authorities. Another six people were missing.
It was not immediately clear what caused the explosion.
The blast was powerful enough to knock out windows at a warehouse more than two miles (three kilometers) away, according to a video shared by a resident, who declined to give his name out of concern about retaliation.
The resident said his home shook. As he went to the window, he saw a column of smoke from the site more than seven kilometers (4.3 miles) away.
Gaomi Youdao Chemical Co. is located in an industrial park in the city of Weifang. It manufactures pesticides as well as chemicals for medical use, and has more than 500 employees, according to corporate registration records.
Local fire officials sent more than 230 personnel to the scene, according to state broadcaster China Central Television.
A student at a school about 1,000 yards away from the plant told state-run news site The Paper that he heard one explosion and saw dirt-yellow smoke, tainted with redness, rising from the plant. He said there was a funny smell, and all students were given a mask and told not to remove it.
A staffer at the local environment bureau told The Paper that a team was dispatched to the scene to monitor potential pollution but had yet to report back.