ABUJA, Jan. 4 (Xinhua) -- Troops fighting terror group Boko Haram in Nigeria's northeast region have rescued another Chibok schoolgirl kidnapped together with more than 276 others in April 2014, the army said on Thursday.

The girl, identified as Salomi Pugo, was rescued early Thursday in a bush around Pulka, some 165 kilometers to Maiduguri, the capital of Borno State, said the army.

Pugo's identity was the same as the Chibok girl on serial number 86 of the available list of the abducted Chibok girls, said Onyema Nwachukwu, a spokesman for the army.

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 three of them are now in custody of the military, under medical observation in Borno, the spokesman said.

A total of 276 schoolgirls were abducted by Boko Haram while writing their high school final exams at the Government Secondary School in Chibok on the night of April 14, 2014.

Fifty-seven managed to escape soon afterward, leaving behind 219.

On Oct. 13, 2016, some 21 of the girls were released by their abductors following a fruitful negotiation with the Nigerian government.

Last May, 82 other girls were released following further negotiation.

Altogether, 106 girls were admitted to a government's rehabilitation facility in Nigeria's capital city of Abuja, as two other girls were rescued and one escaped from the kidnappers' den.

Last September, the 106 schoolgirls rescued so far were sent back to school, starting with a pre-degree program specially organized for them in a university in Nigeria's northeastern state of Adamawa.