Police have dispelled speculations that a badly mutilated body found in Sagana is that of missing Dandora human rights activist Caroline Mwatha.
A police source, who sought anonymity, said they contacted the family and confirmed the remains are not of their daughter.
The officer said they responded after members of the public called a police station after seeing the body of the woman by the roadside on Tuesday morning.
"However we are not taking any chances, we are extending the search to where every lead will send us," the officer said.
Mwatha, a senior official at Dandora Community Social Justice Center, disappeared last Wednesday.
She had been documenting cases of enforced disappearance and police extrajudicial killings, including the cold-blooded murder of six Dandora residents in October last year.
Mwatha, a wife and mother of two, was reported missing on Wednesday last week.
The last time she was seen escorting her son to board a bus to school.
Reports reveal the activist's phone was on until Wednesday at 6pm.
In a statement on Sunday, Amnesty International Executive Director Irungu Houghton called on investigating agencies to move with speed and establish Mwatha’s whereabouts.
Nairobi Governor Mike Sonko has offered Sh300,000 reward for information on the missing activist.
Sonko on Monday urged anybody with information to contact the nearest police station or the Directorate of Criminal Investigations offices.