The head of midwifery at a hospital caring for an abandoned baby has urged the boy's mother to seek medical attention.
Patti Paine of Worcestershire Acute Hospitals NHS Trust said:
I would like to appeal to Joseph's mother to come forward to us because we believe she may be in need of urgent medical attention.
It's important she's seen by a midwife as soon as possible to get checked over.
More top news
Andreea Cristea, 29, remains in a critical condition after being rescued from the Thames after a terror attack along Westminster Bridge.
The Prime Minister has praised the former soldier's "huge professionalism" in trying to save the life of Pc Keith Palmer.
The man who carried out the Westminster attack is thought to be British born and was once investigated by MI5, the Prime Minister has said.