DURANT, Okla. (AP) — Oklahoma Attorney General Mike Hunter refiled lawsuits Friday against three opioid distributors in one of the state's counties hit hardest by the opioid epidemic.

The litigation previously filed as one case in Cleveland County was refiled as three separate cases in Bryan County in southeast Oklahoma against AmerisourceBergen Corp., Cardinal Health and McKesson.

Hunter calculated the three companies were responsible for supplying nearly 70% of the pain pills distributed in Bryan County from 2006 to 2014.

In separate statements, McKesson denied driving the demand for opioids...