UN Secretary General Ban Ki-moon strongly condemned the murder of more than 40 students and the wounding of several others by gunmen at the College of Agriculture in Gujba, Yobe State, northeastern Nigeria, on Monday Extending condolences to the families of the deceased and to the government and people of Nigeria on this tragic occasion, Ban, in a statement late Monday, said he \"is alarmed at the increasing brutality and frequency of attacks targeted against students and teachers in the north of the country and demands an immediate end to such outrageous and senseless crimes. There can be no justification for such violence.\" The Secretary General also called for the perpetrators to be swiftly brought to justice and for increasing efforts to be taken to prevent similar attacks and ensure adequate protection of civilians