Indiana State Police released details Friday of a three-day effort dubbed “Operation Blue Rain” aimed at curbing the flow of narcotics into the state. The patrol, which ran from June 20 to 22 resulted in 99 arrests and 186 criminal charges.

According to a news release, officers from Indiana State Police, the Miami County Sheriff’s Department, the Peru Police Department, the Fulton County Sheriff’s Department, the Cass County Sheriff’s Department, the Wabash County Sheriff’s Department and the Rochester Police Department took part in the operation.