An arrest has been made in the case of a family in Brazil who were poisoned on Christmas Eve after eating a cake containing arsenic.

Three women died and three other relatives fell ill after eating the cake during a family get-together on December 23, officials said.

A woman in Brazil fed her family an arsenic-laced Christmas cake, killing three female relatives and hospitalizing three others, cops say.

In Porto Alegre, Brazil, a woman suspected of murdering three relatives and attempting to kill three more people has been arrested. Deise Moura allegedly added arsenic to a Christmas cake. She was detained at her home in Rio Grande do Sul.

Three women died and three other relatives fell ill after eating the cake during a family get-together on December 23, officials said.