The attackers are thought to be from the Islamist group, Boko Haram
Scores of girls have been abducted in an attack on a school in north-east Nigeria, parents say.
Gunmen reportedly arrived at the school in Chibok, Borno state, late last night, and ordered the hostel's teenage residents on to four lorries.
Parents told the BBC's Hausa service that at least 200 girls had been abducted. The attackers are thought to be from the Islamist group, Boko Haram.
On Monday, bombings blamed on the group killed more than 70 people in Abuja.
Boko Haram has been waging an armed campaign for an Islamic state in northern Nigeria.
The attack on the hostel in Chibok was confirmed by police, although they had no confirmation of the abductions.
Speaking afterwards, a student, who did not wish to be named, told the BBC that she had escaped after seeing her classmates jumping out of the back of a lorry.
This year, Boko Haram's fighters have killed more than 1,500 civilians in three states in north-east Nigeria, according to the BBC's Will Ross in Lagos.
The group emerged as a critic of Western-style education, and its militants frequently target schools and educational institutions.