In one of the biggest damages verdicts ever imposed, a jury in Louisiana has ordered a Japanese drug maker and its American partner to pay a combined $9 billion in punitive damages over a diabetes drug that has been linked to cancer.

Jurors in a district court trial in Lafayette, La., ordered the Japanese company, Takeda Pharmaceutical, to pay $6 billion in punitive damages on Monday after finding that the company had hidden the cancer risks of its drug, Actos.

The jury also ordered Takeda’s partner, Eli Lilly, which once marketed the drug in the United States, to pay $3 billion.

Both Takeda and Lilly said they disagreed with the verdict and would fight it. Under the companies’ contract, Lilly is indemnified by Takeda, and so would not have to pay any damages.