Lakewood police are investigating the death of a 3-month-old girl.
Officers and paramedics were called to the child's home last Thursday because the child was having trouble breathing, police said.
The girl was taken to the hospital, but she died Sunday from what detectives called "unexplained injuries."
Detectives said the girl was home alone with her 20-year-old father, but no one has been arrested in the child's death.
Lakewood police are asking anyone with information that could help detectives to call 303-987-7111.