Inmates sit on the floor during an inspection visit in the long-term sentence zone inside Klong Prem high-security prison in Bangkok, Thailand July 12, 2016. REUTERS/Jorge Silva

Inmates sit on the floor during an inspection visit in the long-term sentence zone inside Klong Prem high-security prison in Bangkok, Thailand July 12, 2016. REUTERS/Jorge Silva

Inmates sit on the floor during an inspection visit in the long-term sentence zone inside Klong Prem high-security prison in Bangkok, Thailand July 12, 2016. REUTERS/Jorge Silva

July 18, 2016 11:14 AM (UTC+8)