Police on Monday sealed off an area near the Tom Mboya-Latema Road junction after a suspicious metal box was detected by members of the public.
Central Police Station police boss Robinson Thuku confirmed that bomb squad experts were called in the scene.
He added that the metal box was carried away for further analysis.
“The experts are doing their job. They carried away the box to be able to analyze it further in a contained environment.” He said
The incident comes just a day after an explosive device went off in the same area.
Following the weekend incident, the National Police Service asked Kenyans to remain alert and be conscious of the surroundings.
Investigations are still ongoing to assist in identifying those who may have been involved in the incident.