The curfew was clamped last night as the situation in Khowanigaon village under Chowkikhola police station remained tense after the burning down of houses last night, Karbi Anglong Superintendent of Police Mugdhajyoti Mahanta said.
Additional companies of paramilitary forces were rushed to the spot and senior police and civil officials were camping in the area.
The district administration set up three relief camps where villagers were accommodated.
A group of Karbi Peoples Liberation Tigers (KPLT) militants had swooped down on the village yesterday and opened fire killing four persons, including three women.