Dec 18 (Reuters) - A Washington state jury on Monday ordered Bayer's Monsanto to pay $857 million to seven former students and parent volunteers of a school northeast of Seattle who claimed that chemicals known as PCBs made by the company leaked from light fixtures and made them sick, according to court documents.

The jury in Seattle found the company liable for selling polychlorinated biphenyls (PCBs) used in the Sky Valley Education Center in Monroe, Washington that were not safe and did not contain adequate warnings. The verdict included $73 million in compensatory damages, and $784 million in punitive damages.

The plaintiffs included five former students and two parents who spent time at the school 7 to 18 years ago. They claimed exposure to PCBs at the school caused them to have neurological, endocrine system and other health concerns. Read the whole story here.