One suspect has been arrested following the Tuesday afternoon attack in Riverside, Nairobi as rescue operations continue.
Specialist police units have been at the scene as they seek to apprehend other attackers at the DusitD2 Hotel.
At the same time, more heavily armed security officers aboard two UN vehicles have made way into the building.
Security teams could also be seen patrolling the fourth floor of the building housing the Commission on Revenue Allocation (CRA) offices.
Mr Francis Njue, who was caught up in the melee, narrated how in most of the rooms, shaken customers and visitors had locked themselves in and would not open even after police officers who were first to arrive identified themselves.
Those being rescued had to undergo thorough frisking by the security agencies.
By Daily Nation