From a report by PT, National Security Adviser, Babagana Mongono has accused Buhari's Chief of Staff, Abba Kyari, of interfering in security matters which he insists is not within the purview of Kyari's office. Read the report below Babagana Monguno, has accused President Buhari's Chief of Staff, Abba Kyari, of undue and dangerous interference on matters bordering on national security. Consequently, Mr Monguno has fired a warning memo to all service chiefs to desist from taking further directives from Mr Kyari, according to documents seen by PREMIUM TIMES . Mr Monguno said Mr Kyari’s directives to service chiefs were sometimes issued without the knowledge much less approval of the president, a practice he said has added to government’s failure to contain insecurity. “Chief of staff to the president is not a presiding head of security, neither is he sworn to an oath of defending the country,” Mr Monguno, a retired major-general, said in the December