The AP has this report as well, but to once again direct your attention to the best English-language source on things Yemeni, here is Jane Novak at Armies of Liberation on the attempt yesterday by a suicidal attacker to bomb the convoy of South Korean investigators as they drove in from the airport. The bomber missed, killing only himself.
Her report is detailed; her explanation of the possible actors in the crime is better. For bonus points, she even notes the role of South Korean investment in Yemen's Liquefied Natural Gas export project.
This attack follows the killing of South Korean tourists last weekend.