ANADARKO, Oklahoma - Arrest warrants were issued against 40 people Tuesday as authorities try to stop a large methamphetamine distribution network in western Oklahoma.

By the afternoon, about two dozen of the primary suspects were in custody in the Caddo County Jail. They face several charges including, trafficking, distribution and conspiracy to distribute methamphetamine, said Mark Woodward, spokesman for the Oklahoma Bureau of Narcotics and Dangerous Drugs Control.

"The defendants in this case were distributing up to five pounds of 'ice' per week in places like Oklahoma City, Weatherford, Anadarko, Chickasha and Lawton, and they were wiring thousands of dollars in drug proceeds back to Mexico on a routine basis," Woodward said.

The arrests were the result of a nine-month investigation by the narcotics bureau and several other law enforcement agencies.

In addition to the 40 suspects named in Tuesday's warrants, Woodward said authorities expect to arrest as many as 25 more people.