The students, who were taken from a school more than a week ago, say they were beaten by the kidnappers. Police are still looking for hundreds of schoolgirls kidnapped Friday.
Police in the northwestern state of Zamfara said efforts are underway to trace the kidnappers and rescue the abducted students, who may have been moved to neighboring forests.
An investigation is underway to determine what caused a small Nigerian air force passenger plane to crash near the nation's capital on Sunday, killing all seven people on board.
Last week's attack, claimed by Boko Haram, recalled the Islamist group's abduction of 276 girls in 2014. Unlike that attack, though, this fraught chapter ended relatively quickly, and with happy news.
Dr. Chizoba Barbara Wonodi of Johns Hopkins University explains why a strategy to vaccinate everyone may not be the best approach to fighting the virus in lower-income countries such as Nigeria.
The protests began about two weeks ago demanding an end to police brutality. Now, as one activist said, "it has become so many things for so many Nigerians." The government declared a 24-hour curfew.
They faced bias against women in science. They faced racism because their families come from Africa. And they triumphed in a competition to develop a problem-solving app!