Five men in northern Nigeria were sentenced to death last week. Their crime? Murdering a woman they accused of being a witch. They said that the wife of one of the men had a dream she was being chased by the woman. The death penalty is rare in Nigeria and it has opened up a discussion on why people are being attacked for supposedly using witchcraft.

Olaronke Alo is a BBC journalist working in the disinformation unit in Lagos. She explains why people are still being accused of being witches, and what authorities are doing to stop it.

We also hear about Dr Leo Igwe who set up his own business to protect those accused of sorcery.

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