Officials in Adams and York counties are advising people not to fish, boat or swim in certain sections of the Conewago Creek until further notice.
The fire started around 3:30 a.m. Monday at Miller Chemical and Fertilizer in Conewago, Adams County. It continued to smolder as of 10 a.m. Firefighters were letting the fire burn out.
Firefighters are currently battling a fire that broke out inside a chemical plant in South Jersey.
A fire broke out at the Du Pont Red Lion plant on Thursday evening.
Firefighters in Bucks County quickly contained and controlled an early morning explosion and fire inside a commercial plant that produces chemical powders for pharmaceuticals and foods.