The government has concluded all the necessary preparations ahead of the Africa Climate Summit which starts on Monday next week.
The summit will run from September 4-6 alongside the Africa Climate Week scheduled for September 4 to 8 at the Kenyatta International Convention Centre (KICC), Nairobi.
Interior PS Raymond Omollo said sufficient security measures have been put in place to ensure the safety of dignitaries and participants during the conference.
He revealed that a multi-agency security team of about 4,000 officers has been deployed to secure the venue of the event.
The team comprises personnel from the Kenya Defence Forces (KDF), the General Service Unit (GSU), General Duty Police Officers as well as the National Youth Service (NYS).
In a statement on Saturday, Omollo said the officers will also provide delegates with the required logistical support before, during and after the Summit.
Over 30,000 leaders and investors from Africa and beyond including two dozen heads of state and government are expected to attend the summit.
"The security protocols and logistics were today subjected to a full simulation test, which featured a dry-run of the arrival of dignitaries at the JKIA, movement to Nairobi CBD, activities at the main venue, emergency responses, as well as the general flow of traffic and crowd control measures," he said.
Omollo said specialised units have also been deployed at strategic locations to provide technical security support during the summit.
Registration for the event has been closed and participants are supposed to collect their accreditation badges from the Nairobi City County Offices, Charter Hall.
Several roads within the CBD were closed from Saturday afternoon.
Omollo said the city has been zoned for ease of security management, with Harambee Avenue, Parliament Road, City Hall Way, Taifa Road and the adjacent buildings marked "Red".
He said Kenyans working within the zone will be required to produce their employee badges and official identification documents at police barriers.
"Police officers and marshals will be available to provide direction on the movement and flow of people and vehicles into and out of the city. Those who wish to carry on with their daily activities in areas outside the "Red" are free to do so, and cooperate with security officers should they be asked to," he said.