PORTLAND, Maine (AP) — Maine is suing biochemical giant Monsanto for allegedly knowingly selling products containing harmful chemicals that have contributed to contamination in the state.

The latest lawsuit targeting the company over the manufacture and sale of products with polychlorinated biphenyls, also known as PCBs, was filed on Thursday in Cumberland County Superior Court. It alleges that Monsanto knew about the danger of PCBs years before they were banned but continued to make and sell products containing them.

“We have evidence that Monsanto knew that its PCBs products were causing long-lasting harm and chose to continue to make money off poisoning Maine’s people and environment,” Attorney General Aaron Frey said in a statement Friday. “I am taking action to demand that Monsanto pay for the harm it knowingly caused our state.”