Kenyan President William Ruto on April 24 vowed to crack down on "unacceptable" religious movements as police discovered more fatalities in a Christian cult that practised starvation, bringing the toll to 58.
A major search is underway in a forest near the coastal town of Malindi where dozens of corpses were exhumed over the weekend, with authorities fearing more grisly discoveries could be made.
A full-scale investigation has been launched into the Good News International Church and its leader, named in court documents as Paul Mackenzie Nthenge, who preached that death by starvation delivered followers to God.
The police had previously named the suspect as Makenzie Nthenge.
It is believed some of his devotees could still be hiding in the bush around Shakahola, which was raided by police earlier this month after a tip-off from a local non-profit.
Since then, a number of people have been rescued and dozens of bodies unearthed in mass graves dug in shallow pits.
"58 people (have been) confirmed dead and this is out of bodies exhumed and those who died on the way to the hospital," said police chief Japhet Koome who visited the site on April 24.
The toll had stood earlier on April 24 at 51.
A 800-acre area of woodland has been declared a crime scene as teams clad in overalls search for more burial sites and possible cult survivors.
Mr. Ruto, speaking in Kiambu county neighbouring Nairobi, said there was "no difference" between rogue pastors like Nthenge — who has been arrested and is awaiting trial — and terrorists.
"Terrorists use religion to advance their heinous acts. People like Mr Mackenzie are using religion to do exactly the same thing."
"I have instructed the agencies responsible to take up the matter and to get to the root cause and to the bottom of the activities of... people who want to use religion to advance weird, unacceptable ideology."
As authorities try to uncover the true scale of what is being dubbed the "Shakahola Forest Massacre", questions have emerged about how the cult was able to operate undetected despite Nthenge attracting police attention six years earlier.
"The unfolding horror that is the Shakahola cult deaths should and must be a wake up call to the nation, more particularly the National Intelligence Service (NIS) and our community policing programme," Amason Jeffah Kingi, the speaker of the senate, said in a statement.
"How did such a heinous crime, organized and executed over a considerable period of time, escape the radar of our intelligence system?"
Nthenge was arrested in 2017 on charges of "radicalisation" after urging families not to send their children to school, saying education was not recognised by the Bible.
He was arrested again last month, according to local media, after two children starved to death in the custody of their parents.
He was released on bail of 100,000 Kenyan shillings ($700) before surrendering to police following the Shakahola raid.
Another 14 people are also in custody over the Shakahola deaths, according to Koome. The case is due to be heard on May 2.
There are fears some members could be hiding from authorities in the surrounding bushland and at risk of death if not quickly found.
A number of people have already been rescued and taken to hospital in Malindi, on Kenya's Indian Ocean coast.
Hussein Khalid, a member of the rights group Haki Africa that tipped off the police to the actions of the church, said one of those rescued had refused to eat despite being in clear physical distress.
"The moment she was brought here, she absolutely refused to be administered with first aid and she closed her mouth firmly, basically refusing to be assisted, wanting to continue with her fasting until she dies," he told AFP.
The Kenya Red Cross said 112 people had been reported missing to its support staff at Malindi.
The case has grabbed the nation's attention, prompting the government to flag the need for tighter control of fringe denominations in a country with a history of self-declared pastors and movements that become immersed in crime.
Interior Minister Kithure Kindiki, who has announced he would visit the site on April 25, described the case as "the clearest abuse of the constitutionally enshrined human right to freedom of worship."
But attempts to regulate religion in the majority-Christian country have been fiercely opposed in the past as attempts to undermine constitutional guarantees for a division between church and State.