Nigerian forces have killed around 40 Boko Haram militants and freed 455 of the group's hostages, an army spokesman said Saturday.
Sani Usman said that troops destroyed 12 of the terrorists' camps near the villages of Wulge and Walamari in the country's north-east. Twenty-seven extremists were killed during the operation and soldiers were able to release hundreds of hostages.
Meanwhile, the army repelled an attack on the village of Pulka in the same region, Usman said, adding that seven Boko Haram fighters were killed as a result.
He also said that soldiers "killed quite a number of terrorists" in the nearby village of Mairimri.
The Sunni fundamentalists pose a steady threat to communities in the north-east of Nigeria and have also launched offensives in neighbouring Chad, Niger and Cameroon. The group's goal is to enforce a strict interpretation of Islamic law, known as sharia.
Since 2009, at least 14,000 people have died at the hands of the terrorists in Nigeria, Chad, Cameroon and Niger.