05/07/2014 03:01 pm ET Updated May 07, 2014

Malala: 'Girls In Nigeria Are My Sisters'

"The girls in Nigeria are my sisters." These are the encouraging words of Malala Yousufzai for more than 300 girls recently kidnapped in Nigeria.

The young Pakistani activist spoke to CNN's Christiane Amanpour on Wednesday about the abductions in the African nation, explaining she was concerned and felt compelled to raise her voice for the girls' rights.

Yousufzai added she considers Boko Haram to be extremists who don't really understand Islam. "They have forgotten the word Islam means peace," Yousufzai said, adding that Islam sends the message that people should become knowledgable and get an education.

Yousufzai, a campaigner for women's rights and education, was shot in the head and neck by gunmen in October 2012. The Pakistani Taliban claimed responsibility for the attack, blaming the girl for being pro-Western culture, anti-Taliban and calling president Obama her idol.

On Wednesday, Nigerian authorities promised a $300,000 reward for any information leading to the rescue of more than 300 girls who were kidnapped by Islamist extremists. Most of the girls were captured at their school in the north of the country on April 14. Another 11 girls were abducted on Tuesday in the same region.

"They should think of these girls as their own sisters," Yousufzai concluded in the interview. "How can one imprison his own sister and treat them in such a bad way?"

Watch the full CNN interview with Malala here.