WILLIMANTIC, Conn. (AP) Police say more than 20 people have been arrested in eastern Connecticut in connection with a three-month narcotics investigation.

Willimantic Police Corporal Stanley F. Parizo Jr. said Monday that 23 people have been arrested in the last two weeks. He says police seized more than $5,000 in cash and varying amounts of cocaine, heroin and K2, a synthetic marijuana substance.

Police say they staggered the arrests to avoid drawing attention to the investigation, which they dubbed ``Operation Thread City Round Up.''

Most of the people arrested are facing heroin or cocaine possession and sales charges.

Police say they are still working to secure arrest warrants.