Five more bodies have been retrieved from the Kware dumpsite in Mukuru Kwa Njenga.
They were all tied in sacks similarly.
There were fears the number would rise as the search went on by 2.30 pm.
A crowd gathered at the scene to have a glimpse of the developments amid tensions.
Detectives from the Homicide Unit at DCI headquarters oversaw the exercise as they pleaded for patience to unravel the truth.
Police said they are investigating the deaths and dumping of the bodies at the site which was a quarry and was now being used as a dumpsite.
The search was slow as the teams were using locals by lowering them using ropes to fetch the bodies.
One boat was brought to the scene to help in the search and recovery mission.
The mystery of the mutilated bodies found at Mukuru kwa Njenga slums in Nairobi continued to unravel as more sacks of polythene bags were still being retrieved on the second day.
The Directorate of Criminal Investigations officials, homicide team and Recce squad are on-site to lead the retrieval of the bodies at the dump site.
The recovery of the bodies increased to more than 10 the number recovered since Friday.
Human rights groups said they expected the number to rise further.
DCI boss Mohamed Amin confirmed that homicide detectives were analysing samples from the scene to identify the bodies positively.
“Preliminary investigations suggest a similar mode of killing for the deceased. The bodies have been transferred to the City Mortuary, where they await post-mortem examinations,” Amin said on Friday.
Witnesses who spoke to the media revealed that the bodies had the same degree of decomposition, roughly one to two weeks.
This is yet to be confirmed through a post-mortem examination that will be conducted at the City Mortuary.
On Friday, nine bodies were retrieved from the dumpsite.
The bodies were wrapped in sacks and dumped at a dumping site. Police say some were fresh while others were decomposed.
Eight of the bodies were women, police said in their preliminary investigations.
Witnesses and police said some had burns. They seemed to have been killed elsewhere and dumped at the site near Kware Police Station.
The discovery was made by local youths at about midday on Friday, July 12.
Police arrived at the scene as the bodies were being retrieved by the youth and helped to move them to the mortuary pending identification and autopsy.
Police said they are investigating. It is not clear who was behind the murder.
There are fears the number of the bodies would increase. This is because the site is expansive and it was stinking even after the nine bodies were removed.
Nairobi police boss Adamson Bungei said they are investigating the deaths which he added indicate to murder.