Attackers kill 15 people in Borno state , abduct village women in Yobe state , residents say . In Borno state in April , Boko rebels abducted nearly 300 schoolgirls , who remain missing . The Islamist militant group has terrorized Nigeria 's northeastern Borno state in recent years .
Attackers kill 15 people in Borno state , abduct village chief in Yobe state , residents say . In Borno state in April , Boko Haram abducted nearly 300 schoolgirls , who remain missing . The Islamist militant group has terrorized Nigeria 's northeastern Borno state in recent years .