Three people have lost their lives and four others were seriously injured in a fire incident at Kariobangi South area.
The three include a one year old child and two other family members who were asleep when the fire broke out at around 2am.
The cause of the fire has not yet been established but police assessment concluded that there had been a power blackout in the area and residents were using candles and lamps for lighting.
Nairobi county commander Philip Ndolo said investigations will be conducted and those injured have been taken to the hospital.
The minor was pronounced dead on arrival at a local hospital.