The Coordinator, Defence Media Operations, Maj.-Gen. John Enenche disclosed this on Sunday in a statement in Abuja.
Enenche explained that the troops had on July 17, killed six terrorists at Kolofata, a community on the Republic of Cameroon border, in an attempt to cross towards Sambisa Forest.
He also said that weapons and equipment recovered from the terrorists include a Magazine with 48 rounds of 7.62mm ammunition, eight bicycles, one Honda car, three AK47 rifles and one motorcycle.
He said: “Shortly after the successful operation, the enemy communication intercept confirmed the killing of a top Boko Haram Commander named Sayinna and other fighters during the encounter.
“The other slain terrorists were suspected to be Imam and Mansur to Abu Fatima who hibernates in Sambisa Forest.”
Enenche said the troops continue their onslaught on the terrorists in the northeast, killing eight prominent leaders of Boko Haram in their futile attempt to infiltrate Army Super Camp, Damasak.
Enenche noted that with the troops’ doggedness, superior firepower and manoeuvring skills, the terrorists were devastated and the rest escaped in total disarray.
He said: “This is evident by the frequent changes in ISWAP leadership within a short period of time, and this is largely due to the several losses inflicted on their men, weapons and equipment.”