The Justice Department has filed a civil lawsuit against Walgreens, accusing the 124-year-old pharmacy chain of dispensing millions of unlawful prescriptions over a period of several years.

A Justice Department lawsuit alleges the illegal prescription-filling by Walgreens included opioids, and began in August 2012.

The U.S. Justice Department is accusing Walgreens of filling millions of prescriptions in the last decade and more without a legitimate purpose, including for dangerous amounts of opioids, according to a lawsuit filed this week.