An explosion has occurred at Federal College of Education in Kano.Vanguard reports that gunmen also fired shots sporadically on the college campus.Armed security personnel were reportedly heading to the college.We will bring you additional details as they become available.Update:The Police in Kano on Wednesday confirmed the death of 15 persons, including two suicide bombers, at the Federal College of Education (FCE), Kano, according to NAN.The Commissioner...