Speaking to Kenyan.co.ke Habib Omar, a human rights activist from the Kariobangi Social Justice Centre who was at the scene, revealed that the different parts of the body had been disposed in a sack that was tied.
It remains unclear when the body was dumped and whether it was dumped in the area or and was dragged by the water to the spot.
At the time, they were yet to determine if the parts are from one body or more. According to Omar, police are yet to get to the scene.
Agitated residents had complained that they had been waiting for the Director of Criminal Investigations (DCI) officers from the homicide department, who took too long to respond.
A mammoth of a crowd surrounded the river as they waited for the officers to turn up so they could open the sack. The residents had waited for the DCI officers' response since 7am.
DCIO Starehe was among the first respondents who tried to calm the residents who were visibly angered and kept on questioning the whereabouts of the DCI officers.
The Starehe DCIO, Mr Amani oversaw the retrieval of the body and alleged that the parts of the body were parts of a female who had already disappeared, but only a few parts were found.
"These are body parts that the police have been looking for over the past five days. It is not a fresh body, we already had a female body with missing parts in our possession, and these are the parts we have been looking for," the DCIO claimed.
"Now we have a full body of the diseased," the DCIO quickly said as he avoided further questioning. He did not give further details of the body.
The body parts have been taken to the morgue for further investigations.
On Tuesday, January 21, a 29 year old man in Huruma was arrested within the Kelly Towers area while carrying a bag on his back. Upon searching, the officers found human body parts stashed inside the bag.
Upon further investigations, the officers reportedly found more dismembered parts of a human body beneath the suspect's bed, completing the victims body