West Yorkshire Police are appealing for the mother of a newborn baby found dead at a waste management site to come forward.
Police officers said they have "serious concerns" about her health following the discovery in Bradford last night.
A full post-mortem examination is scheduled to take place later today to determine the cause of death but it is believed the child was only very recently born.
Anyone with information is asked to contact the Homicide and Major Enquiry Team via: 101 or by calling Crimestoppers, anonymously and in confidence, on: 0800 555 111.
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