Bongo heartthrob Diamond Platnumz has stood with Kenyans during this time of sorrow.

The Tanzanian singer who has millions of fans in the country is probably the first celebrity outside the country to take to social media to condole with Kenyans after the terror attack at DusitD2.

His message read:

Maombi yangu yapo kwenu KENYA...Poleni sana na Inshaallah Mwenyezi Mungu atawasimamia... 🙏🏻🙏🏻🙏🏻

The National Police Service in a Tweet confirmed that there has been an attack incident along 14 Riverside Drive.

"The area has since been cordoned off. Motorists are advised to use alternative routes to facilitate smooth operations of the Police. Students from the University of Nairobi have been evacuated at the Chiromo building as the operation continues," the Tweet by NPS said.

Al Jazeera reported that the Somali terror group, Al-Shabab, have claimed responsibility for the attack.

3:48PM: Suspected terrorists arrive at dusitD2 Hotel on Riverside Drive, Nairobi in a silver five-seater hatchback and walk toward security officers at the hotel’s gate, where they throw an explosive at the security agents.

Below is how the attack event unfolded:

3:50PM: A loud bang resembling a grenade explosion is heard, with black smoke swelling and rising up into the air.

3:55PM: Three vehicles on fire spotted at the scene.

3:58PM: DCI George Kinoti and team arrive.

4PM: Social media awash with claims of occupants trapped in dusitD2 saying the facility is under attack. Armed law enforcement agents arrive at the facility.

4:05PM Rescue mission underway as a man sporting a red T-shirt and a black pair of trousers is seen being moved away, with a gunshot wound in the back. He is bleeding profusely.

4:11PM: Students from the University of Nairobi, who reside in the nearby Chiromo hostels, are ordered to vacate the premises.

4:20PM: Those injured taken to Aga Khan University Hospital

4:25PM: Ambulances with sirens arrive at the scene.

4:25PM: Recce squad security officers advance into the hotel to try and neutralize the attackers.

4:30PM: Kenya Airforce team arrives at the scene.

4:33PM: Firefighters arrive

4:36PM Recce officers gain access into the building.

4:45PM: Abbas Gullet, the Kenya Red Cross secretary general, is seen entering the dusitD2 premises.

5:32PM The National Police specialised units are on site at 14 Riverside Drive to engage the attackers.