Security agencies have been alerted about a big security threat of Northeast (NE) militants from Myanmar planning terror acts in the poll-bound state of Manipur, reports New Indian Express. According to intelligence sources, militant outfits like Yung Aung faction of National Socialist Council of Nagaland – Khaplang (NSCN-KYA) and People's Liberation Army (PLA) are trying to create disturbance in the Northeast just before the polls especially planning to attack security forces (SF) in Manipur. Moreover, a new batch of highly trained recruits belonging to United Liberation Front of Asom-Independent (ULFA-I) is believed to have infiltrated into Assam.