A science and technology college in northeast Nigeria has re-opened after ISIL militants abducted more than 100 female students from the school back in February. And despite security concerns and many refusing to return to the classroom, some have resumed their studies. CGTN's Kelechi Emekalam has more.

Over 100 freed girls from Dapchi science and technology school queuing at the presidential villa in Abuja only days after ISIL in West Africa released them. The girls had spent one month in captivity after abduction from school. The government says they were set free after negotiations. But before they were released, there was an ominous warning from the insurgents. The girls are not to return to school and they were all photographed. But 15 of them are now defying that warning-they are among the 314 who have resumed normal classes.

KABIR ADAMU SECURITY EXPERT "A repetition of what happened earlier on, a reoccurrence, for me that's the primary danger. What that particular group will do if they decide to attack that place is difficult to say. We know that unlike the group called Boko Haram, they are very unlikely to kill young girls, but for instance they decide to say well we warned you and then you didn't heed our warning and you went back and they now decide to kill them or forcibly conscript them into their group, all these are possibilities".

ISIL is an offshoot of Islamic militant group Boko Haram whose name loosely translates as "western education is forbidden". Throughout their 9-year-old campaign to establish a caliphate in Nigeria-the group has destroyed 1500 schools and murdered more than 2000 teachers and scared millions from attending school. There are reports 6 of the Dapchi girls have been married off because their parents lost interest in sending them back to school. Upon receiving the girls, president Buhari directed his security chiefs to beef up security at all schools in the northeast. And he issued a stern warning for lapses.

MUHAMMADU BUHARI NIGERIAN PRESIDENT "the security services have since been directed to put in place further measures around all schools vulnerable to attacks, to ensure the safety of our pupils, students, teachers and school workers, I have tasked all the security agencies to make sure that we do not witness any re-occurrence of this incidence, security chiefs have been warned in clear terms that any lapse on their parts would be viewed seriously."

KELECHI EMEKALAM ABUJA, NIGERIA "The Northeast is a very vast territory and the military has already said it does not have the manpower to protect all schools. At Dapchi science and technology college, we understand only 25 soldiers and vigilantes were deployed to protect the school from possible insurgent attacks. That explains why as many as 600 out of the over 900 that used to attend the school have stayed away."

Kelechi Emekalam, CGTN, Abuja Nigeria.