The infant is in a critical but stable condition
Two people have been arrested on suspicion of attempted murder after a three-month-old boy was seriously injured.
The baby was admitted to Gloucestershire Royal Hospital on Saturday and then moved to Bristol Children's Hospital. He remains in a critical but stable condition.
A woman, 20, and a man, 26, have been arrested by Gloucestershire Police.
A police spokesman said: "Police were called to Gloucestershire Royal Hospital at 11am on 30 July after concerns were raised for a baby's welfare".
"A baby boy, aged three months old, was brought to the hospital with serious injuries".
"He now remains in a critical but stable condition at Bristol Children's Hospital".
"We wish to reassure the local community that this is thought to be an isolated and contained incident, with no wider risk to the public."