At least nine people have been killed in a suicide bomb attack on a military camp in Aden, southern Yemen, most likely orchestrated by Al-Qaeda in the Arabian Peninsula.

A military source told AFP the blast had targeted a camp belonging to Yemeni government forces at Ras Abbas, located in Aden's western Buraiqa district. The camp was overseen by Saudi Arabia's Arab-led coalition against Houthi rebels.

"A man detonate his explosive vest among soldiers" the source was quoted as saying. The troops were attending a training session run by Sudanese forces. Medical sources confirmed nine bodies had been retrieved from the blast site.

No group has claimed responsibility for the attack although al-Qaeda is strongly suspected. The group has been responsible for a series of bomb attacks across the country and recently orchestrated an assault on Aden's governor and its police chief, who escaped unharmed.

Yemen has been gripped in a nine month civil war after Houthi rebels, backed by Shia Iran seized the Yemeni capital Sana. Saudi Arabia and its gulf allies have intervened in Yemen carrying out an aggressive air campaign to check the rebels' advance.

In the chaos, the Islamic State, a Sunni militant group, has grown in strength and capability in Yemen at the expense of al-Qaeda.