The St. Vincent police say a 22-year-old man is assisting their investigations into the death of a one-year-old child whose throat was slit over the weekend.
The man, identified as a close relative of the child, was arrested on Saturday.
The suspect reportedly said the baby and her father were demon-possessed and must be killed to cleanse the village.
It was reported that he climbed through a window when the child's mother was in the shower and cut her throat.
It is the second case of infanticide in St Vincent & the Grenadines in less than a year.