Two more Chinese suspects allegedly involved in a businessman's kidnapping in Pattaya were arrested on Tuesday.
The alleged victim, a 40-year-old Chinese national named Ren Haibo, was kidnapped for a 35-million-baht ransom demanded by Zhang "Da Dao" Delong, 30, and Zhang "A Tang" Wenjia, 27, both of whom were charged with unlawful detention.
Both suspects allegedly admitted to the crime, saying that they had a conflict with the victim over money generated by call centre scams.
According to the investigation, Da Dao was the last person Mr Ren saw before going missing, and A Tang was listed as the renter of the house where he was held captive in Bang Lamung.
Mr Ren told his Thai girlfriend on Oct 29 that he had a conversation with Da Dao and sent her the address where the conversation took place.
The abductors demanded a ransom from Mr Ren's family, and the family transferred cryptocurrency worth nearly 150,000 baht to the abductors.
Mr Ren's girlfriend alerted the police after losing contact with him after the ransom was transferred.
The victim was tortured and had his little finger cut off, but managed to free himself despite being tied up and escaped from the house on Oct 31.
The police found the ropes used for tying Mr Ren up, a piece of his little finger, and pictures of the assault.
The police will revoke Mr Ren's and his brother's visas as they are suspected of involvement in the call centre scam.