At least two people have been killed and several wounded in two massive explosions that targeted a restaurant on the popular beachfront of Somalia's capital city, Mogadishu.

The incident occurred on Friday when a bomber rammed his explosive-laden car into the gate of the restaurant at Mogadishu’s famous Lido beach.

Shortly afterwards, a second bomber blew up his explosive vest as people rushed towards the scene of the first blast.

Witnesses said they had seen the dead bodies of two security guards, and that at least nine other people were wounded in the attacks.

No group immediately claimed responsibility for the blasts.

The attacks shake Mogadishu’s fragile security some 18 months after African forces and Somali government troops drove al-Shabab fighters out of the capital.

But the group has vowed a campaign of guerrilla-style attacks against the new government, which is supported by Western powers and regional states.