Over 200 workers from a company involved in the construction of the  Olkaria IV power plant in Naivasha town downed tools over poor working  conditions.

The workers from a Chinese company Sinopec paralyzed operations in the  busy area forcing anti-riot police to intervene.

The incident came hours after a 65-year-old Iranian Engineer was  crushed to death by a reversing truck in the geothermal rich area.

According to one of the workers, they were overworked and paid low  salaries.

The worker said they worked for nine hours without any overtime  and received Sh100 per day.

"We are involved in the piping in this geothermal project but the  managers have been overworking and underpaying us," said one  of the workers.

Naivasha OCPD Charles Kortok said security had been intensified  in the area as the parties involved engaged in dialogue.

"The workers and the management are in a meeting addressing issues  that have emerged," said the police boss.

Meanwhile unknown people made away with road survey equipments worth  over Sh4m in the Olkaria area.

The move paralyzed the construction of roads in the area as police  moved in to investigate the robbery.

The OCPD said no one has been arrested though investigations are ongoing.