NAF believes that the crash was caused by an air crash.
The video was published by SITE Intelligence Group and disseminated in Nigerian media.
NAF said in a statement posted on Facebook on Friday: “It is obvious that most of the content of the video has been deliberately tampered with, giving people the wrong impression that the plane was clearly shot down by an air crash.”
NAF rejected the seven-and-a-half-minute clip, calling it “false propaganda”
NAF reported that the plane was missing on Wednesday and there were two pilots on board.
A spokesperson told CNN on Thursday afternoon that the fighter has been deployed near Borno State in northeastern Nigeria to provide air support to ground forces. The ground forces were shot by fighters from the Boko Haram armed group before they lost radar contact.
The NAF said earlier on Friday: “The cause of the crash and the whereabouts of the two pilots are still unknown. The pilots are Lieutenant John Apollarinwa and Lieutenant Ebiakpo Chapel.”
In the controversial video, Boko Haram claimed to have shot down Alpha Jet.
The video showed that multiple fighter jets shot into the air before the explosion ignited the sky when the plane caught fire and fell to the ground. Then, the video was clipped with combatants standing around what appeared to be the wreckage of the aircraft.
Then cut into the aircraft, displaying “NAF 475”-the ID number of the missing aircraft. A scorched body is shown later.
Then, the video additionally showed what looked like a patch on the ground and showed the name of John Apollarinwa.
CNN cannot independently verify the authenticity of the video.
Boko Haram tried to regain control of the lost Northeast Territory by the Nigerian army, thereby increasing its attacks on the Nigerian army.
Frequent air strikes by the Nigerian army continue to disturb the rebels-expelling them from their hiding places.