BELFAST,  — A Maine father and his three adult children are among six people arrested following a six-month investigation into the trafficking of prescription drugs.

Authorities say the drugs sold in Waldo County were OxyContin, morphine and Adderall. They say the drugs were either prescribed to the sellers or came from elsewhere.

The Bangor Daily News reports 64-year-old David Pattershall of Stockton Springs was arrested Wednesday. He was charged with two counts of drug trafficking, punishable by up to 10 years in jail and a fine of up to $20,000. .

Three of his children were arrested in April on trafficking charges: 30-year-old Mark Pattershall and 32-year-old Joanie Pattershall of Stockton Springs, and 26-year-old Kelly Pattershall of Belfast.

Also arrested were 31-year-old Christopher Riley of Searsport and 30-yeasr-old Nenna Jackson-Lamarche of Belfast.