WEST CHESTER, Pa. -

Forty-four people have been arrested in what law enforcement officials are calling the largest drug ring prosecution in Chester County's history.

Twelve more people are still being sought on outstanding warrants in what has been a year-long multi-agency probe targeting a major cocaine trafficking network with ties to a Mexican drug cartel," said District Attorney Tom Hogan.

Prosecutors said the cartel moved more than $60 million in cocaine through southern Chester County over the last 20 years.

The investigation, Hogan said, involved local police departments, state police, a regional drug enforcement task force, and federal agents from the Drug Enforcement Administration.

The ring has ties to "La Familia" cartel, one of Mexico's most violent drug trafficking organizations, Hogan said.