A murder probe has been launched after a newborn baby was found dead at a house in Norwich Road in Ipswich.
Police were called to Wilbury House in the road at 12.35pm on Saturday, a spokesman for Suffolk police said.
Officers received reports that a baby had been found outside the property.
Paramedics also attended the scene, but the baby was declared dead at the scene.
The death is being treated as unexplained and is under investigation.
Two men and a female have been arrested on suspicion of murder in connection with the incident and remain in police custody for questioning.
A police cordon remains in place, with several police cars and vans and a dog unit seen at the scene throughout Saturday afternoon.
A forensics van arrived later on, an eye witness said.
Detective Chief Superintendent Jane Topping, of Suffolk police, said: “This is a very sad and distressing incident and, at this time, our investigation into the circumstances surrounding the baby’s death is in its early stages.
“I would urge people not to speculate on social media as to the circumstances of this tragic event.”
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