SAN ANGELO, Texas - Nearly 50 alleged drug traffickers and violators have been arrested following an 18-month law enforcement operation targeting a narcotics network in West Texas, federal officials announced Monday.

The multi-agency sweep, dubbed "Operation Concho Valley Shakedown," resulted in charges against 48 individuals from San Angelo and its surrounding areas.

Authorities said the network was responsible for trafficking large quantities of methamphetamine, cocaine, heroin, and lethal fentanyl into regional communities.