The girl, identified as Salomi Pagu, is number 86 on the list of the Chibok girls abducted on April 14, 2014.
A statement by the Director, Army Public Relations (DAPR), Brig-Gen.
According to Nwachukwu, the rescued Chibok girl was in the company of another 14-year-old girl identified as Jamila Adams, and a child, when the troops rescued her.
The latest rescue leaves 112 of the girls still in captivity.
A statement by the spokesman of the Operation Dole counterinsurgency force in northeast Nigeria, Onyema Nwachukwu also revealed that several other Boko Haram insurgents were injured in the attack.
Rogers said the troops had inflicted "heavy casualties" on the insurgents and made arrest, promising to give details later.
NAN reports that so far, two batches of 21 and 82 girls have been freed as a result of the federal government entered into negotiations with the Boko Haram terrorist group for the release of the Chibok girls.
Another Nigerian schoolgirl seized in a mass abduction by Boko Haram extremists from a boarding school almost four years ago has been found, authorities announced Thursday.
Read the full statement issued by the Nigerian Army below on the rescue of the Chibok girl.
Abuja - ONE of the female students of Government Secondary School, Chibok, in Borno State, abducted by Boko Haram terrorists early in 2014 has been rescued.
"General Rogers attributed the successes recorded to the collaborative efforts of the components of Operation Lafiya Dole which he said include the Army, Airforce, Navy, Police, State Security Service, Civil Defence and the Civilian JTF".