The Alamosa Police Department said a multi-agency narcotics investigation this past week led to the seizure of thousands of fentanyl pills, other illegal drugs, firearms and multiple arrests across the San Luis Valley area.

According to police, the investigation took place May 7 and 8 with assistance from the Drug Enforcement Administration and the Colorado Bureau of Investigation.

Police said detectives conducted a traffic stop on U.S. 160 at Colorado 159 after an Alamosa Police Department K-9 alerted officers to the vehicle. The area is near Fort Garland.…