A drug addict who is undergoing drug rehab, reads Koran during his rehabilitation process at Hikmah Syahadah Islamic Boarding School of Narcotic Rehabilitation, in Tangerang, Indonesia, May 23, 2018. This school tries to help drug addicts get rid of addiction by a religious approach. (Xinhua/Veri Sanovri)

A drug addict who is undergoing drug rehab, stands in his cell room at Hikmah Syahadah Islamic Boarding School of Narcotic Rehabilitation, in Tangerang, Indonesia, May 23, 2018. This school tries to help drug addicts get rid of addiction by a religious approach. (Xinhua/Veri Sanovri)

A drug addict who is undergoing drug rehab, sleeps in his cell room at Hikmah Syahadah Islamic Boarding School of Narcotic Rehabilitation, in Tangerang, Indonesia, May 23, 2018. This school tries to help drug addicts get rid of addiction by a religious approach. (Xinhua/Veri Sanovri)

A drug addict who is undergoing drug rehab, prays during his rehabilitation process in his cell room at Hikmah Syahadah Islamic Boarding School of Narcotic Rehabilitation, in Tangerang, Indonesia, May 23, 2018. This school tries to help drug addicts get rid of addiction by a religious approach. (Xinhua/Veri Sanovri)