Authorities in Argentina are investigating after a premature baby was found alive, 12 hours after she was pronounced dead.

The mother of the girl has said she thought she was hallucinating when she went to visit the morgue and heard a whimper and saw signs of life.

Doctors say the girl is now in a good condition, but remain shocked at how the infant could have survived for so long in a refrigerated room.

The BBC's Richard Slee reports.