Bomb squad operatives on Monday confiscated a suspicious box that was allegedly left unattended along Latema Road.
The police had earlier cordoned off the area after members of the public raised alarm over the metallic box that remained unclaimed for hours.
Central Police Station boss Robinson Thuku told reporters that the bomb squad officers had attempted to open the box at the scene.
According to Thuku, the bomb experts resolved to carry the box for further analysis at their labs.
"The experts are doing their job. They carried away the box to be able to analyze it further in a contained environment," Thuku stated.
Red zone in the CBD
The police boss noted that they were not willing to take chances especially after a Saturday explosion left two seriously injured in the same area.
Regional Police Commander Philip Ndolo confirmed that the Saturday incident occurred after a vendor was given a package to transport on his hand cart.
The package exploded minutes later as the owner disappeared. A newspaper vendor was also injured in the process.
The Latema explosion is still under investigation as police are yet to find suspects.