A person was killed and three were injured at Tronglaobi in Bishenpur district on Wednesday.
Curfew, which was relaxed till 4 PM, was immediately cancelled in Bishenpur, Imphal West, Imphal East districts.
Unknown persons had been attacking villages in Manipur foothills and burnt large numbers of houses since Tuesday night.
The armed persons resorted to heavy firing, killing a person and injuring three.
Police have rushed in to control the situation.
Over 40,000 people, whose houses were burnt, were still in various camps.
Due to blockade on national highway by people at Kangpokpi since May 3 last, there is shortage of food, medicines and essential items in the state.
Since May 3 due to clashes between two ethnic groups in Manipur, there is unrest in the state and suspension of internet.
Talks are on with media and fire brigade personnel as media persons and fire brigade personnel were beaten up badly by Army personnel on Monday.
Fire fighters were on a stir as they were pulled down from fire tenders and beaten up when they rushed in to douse a fire.
