The Nigerian army has driven Boko Haram militants from the last camp in their Sambisa forest stronghold, President Muhammadu Buhari has said.
“The terrorists are on the run and no longer have a place to hide,” Mr Buhari said in a statement.
The Islamists’ camp fell at 13:35 local time (12:35 GMT) on Friday, he added.
The army has been engaged for the last few weeks in a major offensive in the forest, a huge former colonial game reserve in north-eastern Borno state.
There has been speculation that some of the Chibok schoolgirls kidnapped in 2014 were being held in the forest, after it was named by a small number of girls who escaped.
Mr Buhari said in his statement that efforts to find the remaining girls would be intensified.