Investigators said they seized about 350 human skull fragments from the suspects, the Bangkok Post reported Friday.
Arrested were the 47-year-old abbot of a temple in Khon Kaen province in northeastern Thailand, a 39-year-old monk, a 13-year-old novice monk and two accomplices, 39, and 28, police said.
In one case, the suspects were accused of digging up a man's body in the temple's graveyard, stealing the skull and breaking it into fragments, which they decorated as love talismans that were sold in Hong Kong for between $32 and $97.
The monks, who admitted to taking three skulls, said they used the money to buy drugs, police said.
Celebrity Families of 2014 [PHOTOS]