An Indonesian maid who mixed her own urine with the formula milk she fed to a Hong Kong infant she was looking after has been jailed, a report said on Wednesday.

The maid, 24-year-old Purwanti, who like many Indonesians uses only one name, added her own urine to the formula milk because of a traditional rural Indonesian belief that it makes a baby more obedient and closer to the caretaker, a court was told.