BENNINGTON, Vt. (AP) — Nearly 50 people were arrested throughout Bennington County Wednesday by more than 100 federal, state and local law enforcement agents in what is being called one of the largest operations in Vermont history to disrupt illegal drug sales, police said.

A number of other suspects were still being sought late Wednesday while others suspected in the drug operations throughout the county were already in jail, police said. When police first announced the operation, they said they were searching for 63 individuals.

The operation came after a six-month investigation by the Vermont Drug Task Force Mobile Enforcement Team. In one case, police searched a Bennington home where they found 83 bags of heroin, 12.5 grams of crack cocaine, and 47 OxyContin pills.

‘‘The success of this operation is a step forward for the town of Bennington and Bennington County in its fight with drugs and crime in our community,’’ Bennington Police Chief Paul Doucette said.

Most of the charges involved the possession or sale of heroin and cocaine, but there were also charges of possession of marijuana, hallucinogenic drugs and prescription narcotics and possession of a weapon in the commission of a felony.

Most of the suspects were from Vermont while a number were from New York; one was listed as being from the state of Washington.

After the arrests, the suspects were taken to criminal court in Bennington where they were being arraigned late Wednesday afternoon, police said.