A 28-year-old man has been arrested on suspicion of the murder of a woman and an 11-year-old girl in Gloucester.
Police were called to an address in Dexter Way early this morning after reports that two people had been seriously injured.
In a statement, the force has said "A 31-year-old woman and an 11-year-old girl were declared dead at the scene.
"A 28-year-old man has been arrested on suspicion of the murder of the woman and the girl.
"Anyone with information about the incident is asked to call Gloucestershire Constabulary on 101 quoting incident 73 of May 28.
"Cordons will remain in place at locations linked to the investigation while our inquiries continue. No further details are available at this time."