MIRAMSHAH, Oct 5: Students and staff of the Cadet College Razmak were shifted in helicopters from the town in North Waziristan to Bannu on Friday after the college was closed on the directives of NWFP Governor Ali Mohammad Jan Aurakzai till March 2008.Officials and residents said that the college had been closed because of deteriorating law and order situation and mounting attacks on security forces in North Waziristan. The students and teachers were shifted in helicopters because of insecurity on roads, they said.