Nairobi hotel complex under attack

A hotel complex is under attack in the Kenyan capital, Nairobi.

At least two explosions followed by sustained gunfire were heard at the compound in the Westland district of the city, which houses the Dusit hotel as well as offices.

Witnesses say they saw four armed men entering the complex. Vehicles are on fire in the car park.

People are being evacuated. Police have cordoned off the area and are trying to rescue those trapped inside.