Berks County District Attorney John Adams announced the completion of Operation Ice Out on Wednesday.
15 of the 24 suspected mid-level drug dealers are now in police custody.
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During the investigation, authorities say they seized $370,000 worth of meth, cocaine and heroin.
Officers also recovered dozens of semi-automatic weapons, cars with hidden compartments and $78,000 in cash.
An arrest warrant has been issued for the remaining nine suspects.
Authorities are offering a reward for information leading to their arrests.