Chitipa Police Public Relations Officer (PRO), Sub Inspector Gladwell Simwaka said the incident occurred at Kawale Village in Traditional Authority Mwaulambia in the district.
He said villagers suspected the elderly woman of practicing witchcraft after she failed to attend the burial ceremony of her deceased grand-daughter on Saturday in the same area.
“A four-year-old girl, who was granddaughter to the deceased, died and Mulenga did not attend the burial ceremony which did not go down well with some relatives who sought the granny out, accusing her of bewitching the girl.
“The irate mob attacked the old woman soon after the burial ceremony and killed her instantly,” said Simwaka.
He said Police took Mulenga's body to Chitipa District Hospital where the postmortem revealed that death was due to severe loss of blood.
Meanwhile, police in the district have advised people to refrain from accusing the elderly of witchcraft.