Smoke rises from a landfill and waste incineration area at the Chempark industrial park run by operator Currenta following an explosion in Leverkusen's Buerrig district, Germany, on July 27, 2021. [Photo/Agencies] FRANKFURT - At least 16 people were injured and several others were missing after an explosion at an integrated chemical site in the western German city of Leverkusen on Tuesday morning, local media reported. The explosion happened at Chempark Leverkusen at around 9:40 am for a previously unknown cause, with subsequent fire in the tank farm of a disposal center, said Currenta, the company operating the Chempark site, in a statement online.