A ballistic missile fired by Yemen’s Iran-aligned Houthi group has hit a military parade, killing at least six troops, a spokesman said.
The attack took place at Yemen's southern separatist-held town of al-Dhalea, when the Yemeni separaist group, known as the Resistance Forces, were holding an event for new recruits.
The southern separatists are allied with the Saudi-led coalition that has been fighting Yemen's Houthi rebels.
No claim of responsibility has been made and Houthi media did not immediately comment on the blast or accusation.
More than 20 people, including civilians, were injured in the blast, Mr al-Shoebi said, a spokesman for the group.
The conflict in Yemen began with the 2014 takeover of Sanaa by the Houthi rebels. They drove out the government of President Abed Rabbo Mansour Hadi, forcing him to flee to the south and eventually to Saudi Arabia, which entered the war in 2015.
The fighting in the Arab world's poorest country has killed more than 100,000 people and left millions suffering from food and medical shortages.
The conflict has also pushed the country to the brink of famine.
Cover Image: File image of a military vehicle of Yemeni pro-government forces (Picture: PA).