KODIAK, Alaska (AP) – Coast Guard service members face criminal drug charges in Alaska stemming from an internal investigation.

The Kodiak Daily Mirror reported Monday that the investigation beginning in fall 2018 has produced charges of cocaine and marijuana distribution, possession and use.

The Coast Guard did not identify those charged, but documents indicate they include eight aviation electrical technicians and aviation maintenance technicians at Base Kodiak, Air Station Kodiak and Air Station Barbers Point. The ninth is a seaman aboard Coast Guard Cutter Alex Haley.

The Coast Guard announced in February it had initiated criminal proceedings against 12 service members. Three of those entered plea agreements earlier this month and no longer face criminal charges.

The Coast Guard says 31 service members have faced punishment as a result of the ongoing investigation.

Information from: Kodiak (Alaska) Daily Mirror, http://www.kodiakdailymirror.com