A 4-month-old girl was found dead on Friday morning in Nanjing, Jiangsu province. Police are questioning her mother in connection with the incident.

According to the official micro blog of Nanjing Lingjuli, a TV news program of Jiangsu City Channel, the infant's father reported the case to police after he found his daughter was dead at about 10 am in their home in Caohou village, Nanjing.

The infant's mother, who was suspected of killing her daughter due to a mental disorder, was arrested.

The case is still under investigation.