Nigeria's military reports rescuing a second Chibok schoolgirl in a forest battle with Islamic extremists, but a community leader says she is not on the list of 218 students missing from the 2014 mass abduction by Boko Haram.

The army says it liberated 97 women and children and killed 35 extremists on Thursday night, including a second Chibok girl identified as 157 on the list of 218 missing girls kidnapped from a boarding school in Chibok.

Community leader Pogu Bitrus told The Associated Press that number 157 has a different name. The list has two other young women sharing the surname given by the military. Bitrus says the rescued girl may have been visiting sisters at the school.

The first Chibok teenager escaped on Tuesday with a 4-month-old baby.