A man has been arrested on suspicion of murdering a mother and her nine-month-old son, police have said.
The bodies of the 25-year-old woman and her baby who have not been named by police were discovered at their home in Birmingham at around 10.30am on Sunday.
West Midlands Police arrested a 28-year-old man, known to both victims, in Dudley at around 5.15pm. Officers said there had previously been contact between police and the suspect, who has not been named.
They are not looking for anyone else in connection with the incident on Chells Grove, Billesley.
A friend of the woman, who did not want to be named, said: “It’s really shocking. They think she’s been dead since Friday.”
She is believed to have an older daughter who was not in the house at the time of the attack. A police cordon blocked the entrance to the street on Sunday night as forensic investigators scoured the scene.
Superintendent Andy Shipman said: “Today’s awful murders will of course send shock waves through the community. My thoughts are with the family of those involved.
“I want to reassure the community that a man has been arrested and we believe there is no ongoing threat to the public.”
A post-mortem examination has not yet taken place.