A chemical explosion in China killed 18 and injured 10 others today, UPI cited officials as saying. Xinhua reported the explosion happened about 4 p.m. as workers were unloading chemicals in the Lanshan District of Linyi city in Shandong province. The state-run Chinese news agency said it was unknown what kind of chemicals were involved. Seven people reportedly were killed at the scene with 11 others dying after being taken to hospitals.