Terrorists killed five forest guards in Nuku village, Kaiama Local Government Area of Kwara State, early on Friday.
The attackers entered the community around 3am and opened fire.
They operated for hours without meeting resistance, a local source told journalists on condition of anonymity.
The terrorists also set fire to motorcycles used by the forest guards and to patrol vehicles operated by mobile police officers.
A spokesperson for the Kwara State Police Command said she had not received details of the attack but would provide updates as soon as information became available.
The incident marks the latest violence in the area.
Two months earlier terrorists struck Woro and neighbouring Nuku communities in the same local government area.
Reports at the time said they killed more than 200 people and abducted around 176 others, including women and children.
A video that surfaced on Thursday showed some of those abducted pleading for help.
In the footage the captives appealed to the Kwara and Oyo state governments to secure their release.
Residents in the region now worry that security remains weak in rural parts of Kwara.
Families of those taken in the earlier attack continue to wait for news of their loved ones.
