Hatfield baby death: One of two held on suspicion of murder released
One of two men arrested on suspicion of the murder of a 10-month-old baby boy in Hertfordshire has been released, police said.
A 51-year-old from St Albans will have no further action taken against him.
Police were called to The Runway in Hatfield on Sunday night after reports a baby was not breathing. The child later died at the Lister Hospital in Stevenage.
A 37-year-old from Hatfield is still in police custody.
Hertfordshire Police said the cause of the baby's death remains unknown and investigations are continuing.