The Nigerian army has retaken the key town of Mubi from militant Islamist group Boko Haram, the regional governor told the BBC.
Boko Haram seized Mubi, the second largest town in the north-eastern Adamawa state, in October, renaming it Madinatul Islam - City of Islam.
It was the biggest town under the group's control.
Residents there said militants imposed Islamic Sharia law and carried out executions and amputations.
Adamawa state governor Bala Ngilari said government forces had recaptured the town, although there was no independent confirmation of this.
Some reports said Boko Haram had withdrawn after looting the town, rather than as the result of direct fighting.
However, Mr Ngilari's chief of staff, Chibudo Babbi, told the BBC Hausa Service that remnants of the group were being flushed out of Mubi by the military.