Acting on a tip-off, police officers tracked down members of the ring - a 25-year-old man and a 30-year-old woman - and posed as prospective buyers, agreeing to purchase a one-month-old baby for the sum of 10,000 euros.
The police officers arrived at the arranged meeting place in a Patras supermarket parking lot on Thursday, where they found the two suspects with two more individuals that accompanied them, a 30-year-old man and a 31-year-old woman.
During the transaction, the police officers learned that the 30-year-old woman had given birth a few days earlier to a baby boy that was handed over to the police officers posing as buyers, along with a downpayment of 5,000 euro.
Once the transaction was completed, other officers moved in and arrested all four individuals that turned up for the meeting. Police are now investigating whether others may be involved in the group's activities and whether they were behind other sales of infants.