According to AL-Alam Channel reporter in Yemen Casualties of ISIS Attack on a military camp in Aden risen to at least 60 killed and 80 injured.

The victims had been preparing to travel to Saudi Arabia before returning to Yemen's north to battle Houthi forces, officials said.

The men were registering to join the expedition when a pickup truck suddenly accelerated through the building's gate as a food delivery arrived, detonating its explosives amid the crowd.

The men had been signing up to join a unit the Saudis hope will be made up of 5,000 fighters, which they will briefly train then deploy to the Saudi cities of Najran and Jizan, near the border.

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