Islamist militants have driven scores of kidnapped Nigerian schoolgirls back into the town where they had been captured a month ago and abruptly set them free.
The captors gave no reason for their release on Wednesday, but Nigeria denied that a ransom had been paid.
Several of the girls said some of their friends had died in captivity and one was still being held.
The fighters from the Boko Haram group, some shouting 'God is greatest', drove the girls back into the northeast town of Dapchi in a line of trucks in the morning, dropped them off then left.
"I don't know why they brought us back but they said because we are children of Muslims," one of the freed girls, Khadija Grema, said.
Aliyu Maina, reunited with his 13-year-old daughter, said the fighters "stopped and blocked the road, they didn't talk to anybody, they didn't greet anybody."
"They said people should make space for people to recognise their children and I got my child."
Boko Haram has waged a nine-year insurgency in northeast Nigeria and neighbouring states that has killed tens of thousands of people and seen thousands more abducted.
The kidnapping of 110 girls aged 11-19 on February 19 from Dapchi was the biggest mass abduction since Boko Haram took more than 270 schoolgirls from the town of Chibok in 2014 - a case that triggered international outrage.
- Chibok schoolgirl abducted by Boko Haram rescued
- Kidnapped Nigerian schoolgirls reunited with families
Dapchi residents said more than 100 girls had returned on Wednesday.
"One is still with them because she is a Christian," said Grema, the freed girl. "About five are dead but it was not as if they killed them - it was because of the stress and trauma that made them tired and weak."
"They didn't harm us," Grema added. "They were giving us food, very good food. We didn't have any problem."
Muhammad Bursari said his niece Hadiza Muhammed, another of the freed girls, told him the remaining student was still in captivity because she had refused to convert to Islam.
Nigeria had secured the release "through back-channel efforts and with the help of some friends of the country," Information Minister Lai Mohammed said.