Four people, including a teenage boy, have been arrested following the 'unexplained' death of a baby.

Police were called to an address in Middlesbrough on Saturday following the death of an infant.

Cleveland Police said the baby's death is being treated as 'unexplained'.

A 21-year-old woman and a 16-year-old boy have both been arrested on suspicion of causing or allowing the death of a child.

A 19-year-old woman and a 21-year-old man have also been arrested on suspicion of child neglect.