SEATTLE (AP) — Three key players in a drug distribution ring that operated across Washington state were found guilty after a 10-day jury trial.

U.S. Attorney Annette Hayes says 14 others involved in the case pleaded guilty after their arrest in November 2016.

The drug ring distributed heroin, methamphetamine and cocaine in King, Snohomish, Skagit and Whatcom counties.

They had drug connections in Nevada and California.

Law enforcement investigated the ring in late 2015 and early 2016 using pole cameras, confidential sources, wire taps and undercover agents.

The investigation was named "Operation Car Wash" as some of the conspirators conducted deals at a Mount Vernon car wash.

Found guilty of drug conspiracy charges were Baltazar Reyes-Garcia, Hector Contreras-Ibarra and Angel Serrano-Carreno.

U.S. District Judge James Robart scheduled sentencing for January 16, 2018.