Police are investigating a suspected break-in at the house where two children died in a fire.
Two boys, aged one and three, died at the scene in Mason Street, Wolverhampton, on Friday. A woman and and two other children were already out of the property when emergency crews arrived.
A woman arrested on suspicion of causing or allowing the death of two children was released on bail on Sunday.
On Monday, West Midlands Police said it was thought someone had forced entry to the house at some point overnight. It was unknown if anything was taken.
