According to the Washington Post, the army said that all these people have been de-radicalised and are in a frame of mind that they can enter the society again.
The people released on Monday included 118 adult males, 56 women, 19 teens and 51 children, according to operation commander Maj. Gen. Rogers Nicholas.
He said they were only freed after participating in a de-radicalisation programme.
Borno State Governor Kashim Shettima commended the military its ongoing efforts against Haram.
There have been mass releases of Boko Haram suspects in the past, but this is the largest following a de-radicalisation programme.
In 2017, more than 800 Haram fighters participated in the de-radicalisation programme. (ANI)