Boko Haram insurgents have threatened another attack on the military base at Jiddari-Polo, Maiduguri.
The terrorists on Monday attacked farmers in the area, hacking four to death while one was left with severe injuries.
A 75-year-old farmer who is one of the survivors of the attack, Mala Umara, told the reporters that the terrorists came in large numbers.
Umara stated that those insurgents were believed to belong to the Abubakar Shekau group.
The septuagenarian added that the insurgents instructed him to deliver a message to the soldiers that they should be prepared for an attack soon.
Another survivor of the attack, Abba Muhammad, said five of them encircled him while he instinctively bolted.
The attack was also confirmed by a local militia leader, Babakura Kolo.