KENOSHA Wis. (WLAX/WEUX) – An 11-month investigation began with a drug overdose in southeastern Wisconsin. It ended with deputies finding 106 pounds of cocaine with an estimated street value of up to 6 million dollars.

The Kenosha County Sheriff’s Department says it discovered a “large drug trafficking organization” based in Pleasant Prairie. It says “several” people were arrested.

Deputies believe the dealers were operating primarily in Wisconsin and Illinois but had ties throughout the country and in Mexico. The seized cocaine tested positive for fentanyl. The case began in February when deputies saved a person’s life during a drug overdose. They then began looking for the source of the drugs.