Nigerian security sources said on Monday that the fatalities had occurred two days earlier when the terrorists stormed Kalari Abdiye village, in Borno State.
"They singled out the four men whom they accused of collaboration with the military. They accused the men of passing information to the military," said a military officer, who spoke on condition of anonymity.
"The gunmen took the men outside the village where they slaughtered three of the men."
The officer said three locals had their throats cut while the fourth was left severely wounded.
Security sources said that the Takfiri terrorist group had also seized livestock from a nearby village without leaving any civilian casualties.
Nigeria has been at war with Boko Haram since the group launched militancy in Borno State about eight years ago. More than 20,000 people have been killed while the violence has displaced over 2.7 million others.
Boko Haram has pledged allegiance to the Daesh Takfiri terrorist group, which has been wreaking havoc in the Middle East and North Africa over the past few years.
