Staff discovered the body of a newborn baby at a waste management site on Valley Road, in Bradford last night.
West Yorkshire Police said they have "serious concerns" about the health of the baby's mother and have appealed for her to come forward.
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Rain will spread southeastwards through N. Ireland, Wales and England overnight.
The woman used her daughter's own Facebook page to live-stream the attack after the teenager posted provocative pictures online.
A senior employee at the organisation reportedly derided the three-year-old royal for being 'royal, rich' and "advantaged'.