Sana'a  - A suicide bomber blew himself up on a road leading to Yemen's Sanaa International Airport as a convoy of South Korean police investigators and diplomats passed by on Wednesday, police officials said.

The attack took place as the convoy was leaving al-Dailami military base. The bomber, who was killed in the attack, had been waiting outside the gate of the base.

No one else was injured in the attack, with police telling Deutsche Presse-Agentur dpa that the attacker apparently missed his target by triggering his explosive belt seconds after the convoy passed.

On Sunday, four South Korean tourists and a Yemeni tour guide were killed when a bomb went off in Hadhramout province in south-eastern Yemen, police said.

That incident occurred as a three-car convoy carrying nine Korean tourists travelled a isolated road leading to a mountain overlooking the historical city of Shibam, around 900 kilometres from the capital Sana'a.

Hadhramout is one of the strongholds of al-Qaeda in Yemen, and was the scene of a shooting attack on a Belgian tourist convoy in January 2008, in which two female Belgian tourists and three Yemeni drivers were killed. (dpa)