In a nine minute video published online, the group calls itself Soldiers of the Caliphate in Yemen.
They appear, all masked, in a desert landscape and number a dozen or so, bearing automatic rifles.
They go through shooting exercises, and crawl through the sand on their elbows while carrying their weapons.
In the end they face the camera and the man at the forefront sends his greetings to Abu Bakr al-Baghdadi, the self-declared caliph of the so-called “Islamic State”.
The fighter and several others direct their threats to the Houthi shiites movement, who have been fighting the Yemen Al-Qaeda for years.