The Nigerian army has begun the construction of a road into the heartland of Sambisa forest, a stronghold of the Islamist militant group Boko Haram.
The military authorities say the road will link Sambisa forest with adjoining towns.
Construction work has commenced on the Gwoza-Yamteke-Bitta-Tokumbere stretch of the road, leading directly into the forest.
Army spokesman Maj Sani Kukasheka Usman said the army plans to make the forest a training ground for soldiers.
Sambisa forest is a 686 sq km (426 sq mile) land in the north-east of Borno state is believed to be the hiding place of the insurgents’ leader Abubakar Shekau.