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.
More top news
Donald Trump's revised immigration ban targets the same seven Muslim majority countries listed in his original executive order, sources say.
People convicted of cruelty against animals should face much harsher prison sentences, some charities have claimed.
Theresa May has been warned by EU ministers that Britain's Brexit negotiators must be prepared to compromise or risk a "crash landing".