The militants burnt a dozen homes, carted away food supplies and two “trailers loaded with foodstuffs,” another militiaman, Peter Malgwui said.
Askira Uba lies close to the Sambisa Forest where Boko Haram enclaves dwell and has suffered repeated attacks.
Yet in recent months an Islamic State group-aligned faction of Boko Haram has been waging attacks.
Last month three Nigerian soldiers were killed in clashes with fighters from the Islamic State West Africa Province (ISWAP) faction in Askira Uba town.
A decade of Boko Haram violence has killed 36,000 people in the northeast and displaced around two million from their homes, creating a severe humanitarian crisis.
The conflict has spread to neighbouring Niger, Chad and Cameroon, prompting a regional military response to combat the jihadist groups. (AFP)