Oklahoma Attorney General Mike Hunter on Monday announced a lawsuit against major opioid distributors.Hunter announced the details of a lawsuit against several of the nation's leading opioid distributors for the alleged role the companies played in fueling the opioid epidemic in Oklahoma. The lawsuit was filed against McKesson, Cardinal Health and AmerisourceBergen, three pharmaceutical companies that distribute opioids, Hunter said.The state filed the lawsuit in Cleveland County, just like in the case against opioid manufacturer Johnson & Johnson.Hunter said the three companies failed to report suspiciously large orders of highly addictive medications. He did not not back Monday when discussing the companies' alleged role in the addiction epidemic."These three companies were the main distributors of opioids in the United States," Hunter said. "These companies were happy to meet that demand with no questions asked." Hunter said distributors are required to stop and report suspiciously large shipments, saying the three companies did not do that. The attorney general also said all three have paid hundreds of millions of dollars in settlements and fines for failing to monitor suspicious orders.Watch the full news conference below: