An Othello man has been arrested in an ongoing narcotics investigation by the Moses Lake Regional Tactical Response Team.

Erphen Sindhu Khan, 36, of Othello, was arrested Wednesday on suspicion of delivering cocaine, the Grant County Sheriff's Office said Monday.

Search warrants were later served on Khan's vehicle and home in Othello, where other narcotics and drug paraphernalia were found, according to the sheriff's office.

Khan's arrest was the result of a six-month undercover investigation by Grant County's Interagency Narcotics Enforcement Team, according to the sheriff's office. The team includes officers from Grant County, the Washington State Patrol, Moses Lake and Quincy. The Othello police department also assisted.