Home Minister Amit Shah on Sunday convened a high-level meeting with senior officials in the national capital to assess the security situation in Manipur.
While the Chief Minister refrained from naming the underground organisation, sources had earlier indicated that the state government was in talks with one faction of the banned United National Liberation Front (UNLF).
"The aircraft equipped with advanced sensors carried out low-level flying over the suspected area to look for the UFO but it did not find anything there," defence sources said.
The authorities are looking into whether it is an act of some anti-India elements. They are probing whether there is a possibility of any security threat from the unidentified drone.
Meanwhile, medical students from JNIMS and Shija Academy of Health Sciences organised a demonstration calling for the arrest of those responsible for the suspected murder of the two missing Meiteis.