Boko Haram has claimed it shot down a Nigerian fighter jet that went missing earlier this week.
The Nigerian Air Force had said on Friday that the jet might have crashed, with the fate of two crew members unknown.
The Alpha light attack jet was on a mission to support troops fighting militants in Borno when it lost radar contact on Wednesday.
Boko Haram released a video on Friday which could not be verified by AFP showing a militant standing on the alleged wreckage of the jet. It shows the Nigerian flag and number NAF 475 on its fuselage.
“Nigeria air force jet fighter… was sent to Sambisa to fight the Mujahideen,” the militant said.
In 2014, Boko Haram said it shot down an NAF jet and showed a video claiming to have beheaded its pilot.