30 injured in Nairobi street blastBy AFRICAREVIEW Writer | Monday, May 28  2012 at  15:13

At least 30 people were injured when a huge explosion hit a building in the Kenyan capital of Nairobi.

The deafening blast occurred at approximately 1.15pm (1015GMT) at a building housing exhibition stalls next to Mt Kenya University Campus on the city's Moi Avenue.

Firemen at the scene have discovered a two feet crater in the building, which is currently being investigated.

Police Commissioner Mathew Iteere has said they had requested the Kenya Power company to investigate the possibility of an electrical fault within the building.

However, Internal Security assistant minister Orwa Ojode, who arrived at the scene later, said; "police are investigating the possibilities of a grenade attack".

According to an eye witness, there was a huge blast as debris flew in different directions, injuring people in the environs.

The powerful explosion shook buildings surrounding the area, prompting evacuations.

The explosion has disrupted activities along the street as Military Police cordoned off the area and ordered curious crowds to keep off.

Firefighting engines and security officers are at the scene, trying to clear the area for rescue operations.

Prime Minister Raila Odinga is addressing the nation at the scene of the blast.