Hundreds of Nigerian students are presumed missing or kidnapped after gunmen stormed a secondary school in the country’s restive northwest. Police on Saturday said the gang, armed with Kalashnikovs, had attacked the Government Science secondary school in Kankara district in the northwestern Nigerian state of Katsina, adding that roughly half of the school's 800 students were missing. Police spokesman Gambo Isah said in a statement that the forces had exchanged ...