Nearly 2,000 pounds of marijuana were seized Wednesday after a panga boat drug-smuggling operation in Montaña de Oro State Park was interrupted by the San Luis Obispo County Sheriff's Office.
The Sheriff's Office released the figures Thursday in a news release.
The street value of the 53 bales of marijuana seized is $1.3 million.
Fifteen suspects, one of them a minor, are being held at the San Luis Obispo County Jail on suspicion of transporting marijuana for sale, possession of marijuana for sale and conspiracy.
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Three of the suspects are American citizens, one is a Mexican citizen in the U.S. legally, and the rest are citizens of Mexico, Honduras or Guatemala; the majority of them live in Southern California, according to the Sheriff's Office. Click here to see photos of the suspects »