MTN Nigeria says threats of attacks on telecommunication installations by terrorist group Boko Haram still present a serious danger to its operations. Public Relations and Protocol Manager Funso Aina said MTN was still taking stock of the total cost of Boko Haram’s destruction of its base stations, CAJ News reported. About 500 MTN base stations in Nigeria were taken off the network in 2012 after being targeted by the militia. Aina said the government at all levels and security agencies are trying their best to prevent further attacks. Boko Haram attacked MTN, Airtel, Globacom, Etisalat and Nitel facilities last year for allegedly supporting the government of President Goodluck Jonathan.