A man has been arrested on suspicion of the murder of a one-year-old boy.
Merseyside Police said the boy was admitted to hospital from an address in Speke, Liverpool, on Friday.
Officers were alerted to concerns for the child by the ambulance service at 6pm.
The boy was taken to hospital from the house in Belsford Way after suffering a head injury but has since died, a force spokesman said.
A 23-year-old man from Winsford, Cheshire, has been arrested on suspicion of murder and taken to a police station for questioning.
A Home Office post mortem is due to take place today.
Anyone with information is asked to call 101, quoting reference 19100375517, or Crimestoppers anonymously on 0800 555 111.
Reporting by Press Association.
