Mogadishu: At least four people have been killed and several others wounded in a bomb explosion in Kismayo city, southern Somalia, police said.

Mohamed Ahmed, a police officer in Kismayo said that three civilians and one soldier were killed in the explosion in a busy restaurant in the city.

"A bomb planted inside the restaurant exploded while several people were inside. We can confirm that three civilians and one Somali soldier died in the blast," Xinhua news agency quoted Ahmed as saying on Saturday.

Ahmed added that Al-Shabab militants were behind the attack, but the group did not claim the responsibility for the attack so far.

On Monday, the militants exploded a car bomber near the presidential palace in capital Mogadishu, killing 11 people.

(IANS)