Ojo Joseph, a 54-year-old man have been arrested for setting ablaze five of his step children at Fagun crescent area of Ondo kingdom, Ondo west local government area of Ondo state.
Ojo reportedly alleged that his wife, who is the mother of the children offended him.
He was said to have poured petrol into the room where the children were sleeping and set them on fire.
One of the children was said to have been burnt to death, while four other were rushed to the Federal Medical Centre in Owo, for emergency medical attention.
A source familiar with the development said the man perpetrated the heinous act because the mother of the children allegedly denied him sex.
Spokesperson of the state police command, Funmi Odunlami, while confirming the development, said the man had been apprehended by the police for a case of alleged arson and murder.
She added that investigation would be carried out before charging the suspect to court.