Three sisters were found dead under mysterious circumstances in east Delhi's Mandawali area, police said today.
They were aged two, four and eight respectively and were declared brought dead by a hospital yesterday, they added.
They were brought there by their mother and a neighbour at around 1 pm, and the hospital authorities informed police about their deaths.
A board of doctors would conduct a re-examination of the bodies at the GTB hospital, Pankaj Singh, Deputy Commissioner of Police (east), said.
A forensic team inspected the place where the family was staying and found some medicine bottles and pills, police said.
The girls' father, who worked as a casual labourer, is missing since yesterday.
No injury marks were found on the bodies, they said, adding that the re-examination would help ascertain whether they were poisoned.
Initially, it seemed to be a case of natural death but with the medicine bottles being recovered, police want to ensure that there was no foul play in the death of the girls.