SALISBURY — A two-month investigation led to the arrests of men from Rowan and Davie counties on heroin trafficking charges, the Rowan County Sheriff’s Office said.

The Sheriff’s Office received information from the Alexander County Sheriff’s Office in May about people who were traveling from Alexander County to Salisbury to buy heroin, then sell it in Alexander County.

The Rowan County Sheriff’s Office charged Mason White Hyde, 35, of Salisbury, with felony trafficking in heroin or opium; felony possession with the intent to manufacture, sell and deliver a controlled substance (cocaine); felony maintaining a vehicle or dwelling to sell a controlled substance; felony conspiring to traffic in opium or meth; and possession of a firearm by a felon.

Hyde remains in the Rowan County jail under a $500,000 secured bond.

Scott Ray West, 28, of Davie County, was charged with felony trafficking in heroin or opium and felony conspiring to traffic in opium or meth.

West remains in the Rowan County Detention Center under a $125,000 secured bond.

Detectives said Hyde was selling heroin in Alexander, Davie and Rowan counties. Investigators made a series of undercover buys from Hyde at his residence, located in the 200 block of North Oakhurst Drive, and other locations.

During a final undercover purchase, Hyde and West were both arrested. A search of the Oakhurst Drive home turned up heroin, crack cocaine,  a firearm and an undisclosed amount of money.

Hyde has an extensive criminal record with charges or convictions in several counties, including Rowan. West has a record for narcotics possession and is known to authorities for his involvement in drug distribution in the West Rowan and Davie County areas, authorities said.

Agencies participating in the investigation include the Rowan County Sheriff’s Office, Mocksville Police Department, Salisbury Police Department and Alexander County Sheriff’s Office.