A woman has been arrested on suspicion of murder after two young children were stabbed to death, West Yorkshire Police has said.
The 24-year-old was arrested in Undercliffe, Bradford, after paramedics attending reports of an injured child called officers to the scene.
When they arrived, officers found two young children, aged three and one, with stab wounds.
Both were treated at the scene but were pronounced dead a short time later.
The woman has been arrested on suspicion of murder and investigations are ongoing.
Detectives say they are not currently looking for anyone else in connection with the deaths.