Nigeria’s President Muhammadu Buhari on Wednesday visited the northeastern town of Dapchi, nearly a month after Boko Haram militants kidnapped 110 schoolgirls in a chilling echo of the Chibok abduction four years ago.

Buhari was given a red carpet welcome at the Government Girls Science and Technology College, which was attacked on February 19, before meeting parents, teachers and residents.

He told them the military and security services were working around the clock to bring back the girls and vowed to punish those responsible for both Dapchi and the Chibok kidnapping in April 2014.