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An investigation is underway after the body of a newborn baby girl was found at a waste site in Bradford.
The baby's body was discovered in the early hours. Officers say they are now concerned about the welfare of the mother.
A post-mortem is expected to take place to establish how the baby girl died.
A spokesman for West Yorkshire Police said: "Emergency services attended and it was confirmed the baby girl was already deceased. An investigation is under way to identify the child and the circumstances surrounding the discovery of her body. We have serious concerns for the health and welfare of the mother and ask her or anyone who may have information to contact the police as soon as possible."