The 20-year-old Pakistani activist told The Associated Press she was excited by the courage of the young women who are undaunted as they pursue an education amid one of the world's worst humanitarian crises.
"This is part of my girl power trip, visiting many parts of the world," said Yousafzai, who also met with the freed Chibok schoolgirls taken in a mass abduction by Boko Haram more than three years ago. "I am here now because of the Nigerian girls. Fighting for them and speaking up for them."
"They have lived in the period of extremism," Yousafzai said of the young women around her. Many have seen family members killed.
Yousafzai was 15 when she shot in the head by Taliban militants in 2012, targeted due to her advocacy for women's education.
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The Nobel winner said her Nigeria visit was significant because it was the partial fulfillment of what she advocated the last time she was there. In 2014, she pressed then- President Goodluck Jonathan to ensure the rescue of the more than 200 abducted Chibok schoolgirls.
While she told the AP she shared their joy at being freed, she said she was not happy that the girls haven't been allowed to reunite fully with their families.
She said she hopes they will "live with their family, live a normal life."
Many others remain in Boko Haram captivity, "and the government must unite so that they should make sure that these girls are released," Yousafzai said.
"Boko Haram themselves should learn that in Islam, such things are unacceptable," she added. "This is against humanity, this is against Islam."