Suicide bomber kills 3 in Somali capital

An attacker dressed in a business suit over a suicide vest has killed himself and at least three others in a restaurant in Mogadishu.

A suicide bomber has attacked a popular restaurant in the Somali capital Mogadishu. (AAP)

A suicide bomber has attacked a popular restaurant in the Somali capital Mogadishu, killing himself and at least three others, Somali police say.

The attacker, dressed in a business suit over a suicide vest, detonated the bomb after entering the Village Restaurant, police said.

"So far, three civilians are dead," Major Nur Ali, a senior police officer, told Reuters.

This is the third time suicide bombers have attacked the restaurant, which is opposite Somalia's National Theater.