The leader of a Kenyan doomsday cult, in which authorities believe more than 400 members may have died, was jailed on Friday for 12 months for producing and distributing films without a licence.

Authorities accuse Paul Mackenzie, head of the Good News International Church, of ordering his followers to starve themselves and their children to death so they could go to heaven before the end of the world.

Police have exhumed hundreds of bodies from mass graves in Shakahola forest in the country's southeast.

Mackenzie handed himself in to police in April and has repeatedly been denied bail while investigations continue into the mass deaths. He has not yet been charged for his alleged role in the deaths or entered a plea.

On Friday Magistrate Olga Onalo found the self-styled pastor guilty of operating a film studio, producing films and showing them to members of the public without a valid licence.

Mackenzie's lawyer James Mouko said he would appeal against the ruling. Local media reported Mackenzie was convicted and fined for a similar offence in 2017.