Five members of a family -- Abdul Hafeez, his wife Mumtaz Begum and their daughters, eight-year-old Kainat, five-year-old Komal and seven-month-old Saiqa -- were found unconscious in their Model Town house a few weeks ago, police said.
They were shifted to a hospital at Gojra, 125 km from Lahore, where Kainat and Komal died. The others were then sent to Allied Hospital in Faisalabad.
After the couple recovered, police from Gojra city began interrogating them.
During questioning, police said, Mumtaz Begum told them that she was behind the whole episode which resulted in the death of her two minor daughters.
She told police that she had become frustrated after she learnt that her husband was planning to marry again.
In a fit of depression, she decided to kill the whole family.
"I mixed poison in milk and served it to the whole family and I also drank it," she told police.
Police registered a case of double murder against Mumtaz Begum after arresting her.
They released three persons who had been held on suspicion of involvement in the incident.
