The outfit, in the banners, also mourned the death of one of its members in clashes over the Citizenship Amendment Act (CAA) in Bengali-dominated Ichamati village.
The police arrested three persons in connection with the murder. The victim, Moris Marngar, was their uncle.
The alleged incidents were linked to the February 28 violence in Ichamati bordering Bangladesh.
Body of Razia Ahmed, a woman cricketer who has played for Meghalaya in several national tournaments was retrieved from the debris.
A magistrate and a deputy superintendent of police were sent to the site for a detailed report, said South West Khasi Hills District Magistrate Cara Kharkongor.
The population of Meghalaya is approximately 33,00,000 and 50 per cent of the population speak Khasi, 31 per cent speak Garo while the rest speak other languages.
The violence broke out on Friday afternoon at the end of a meeting that was convened by Khasi Students’ Union (KSU) to discuss Citizenship (Amendment) Act and Inner Line Permit.
The curfew was imposed since 9 pm Saturday, following the death of two persons in separate attacks in Ichamati area in East Khasi Hills district on Friday and at Shillong's Iewduh market on Saturday.
The clashes between the Khasi Students Union members and non-tribals broke out during anti-CAA and pro-ILP meeting held in Ichamati area of East Khasi Hills district.
They fear the illegal Bangladeshi immigrants would now migrate to the two states to avoid action against them in Assam.