Detectives under the homicide unit have found one person alive after exhuming a grave linked to Shakahola church members.
The woman has been unearthed in the Chakama area after an informer who was an insider in the church alleged that there is a mass shallow grave of victims totalling to 31 bodies.
The death of the four victims was announced on April 15 after starving for several days.
At least seven more people have been rescued, bringing the total to 18, while three have died.
In the cult, people were allegedly encouraged to fast to death to make it to heaven.
The controversial Malindi preacher Paul Mackenzie of Good News International has been preaching to his followers to fast and pray for several days and eventually, a number of them have died due to hunger.
Last month, Mackenzie was arrested by police officers over the death of two minors in similar circumstances but was released on a Sh10,000 police bond.
The victims were allegedly being brainwashed, according to the police.
“We are going to take legal action against the survivors as they had committed an offence of attempting suicide," they said.