A 78-year-old woman was found dead in her house in Nyayo Estate, Embakasi, after allegedly fasting and praying for days.
Catherine Kibara was found in her bed dead days after she had gone missing.
Close relatives of the woman said they became concerned after she uncharacteristically failed to pick up calls.
She stayed alone in the house.
After the relative went to the house, they found it locked inside. They made their way into her bedroom where they found her lifeless body.
A register of her fasting timeline was discovered in the room showing she had begun fasting on May 18.
Police suspect, she died out of starvation.
The officers handling the case said they plan to conduct an autopsy on the body to establish how and why she died.