Occurring at 10:30 p.m. local time (UTC+8), an improvised explosive device beneath table number 11[1][2] in the Sampoddo Indah karaoke cafe.

Witnesses reported that two men spent two weekends scouting the Sampoddo Indah Cafe located 4 kilometres (2.5 mi) from downtown Palopo on the road to Makassar, staying for a short period of time then leaving.

[5] A device, thought to have been remotely detonated,[6] exploded at 10:30 p.m. local time (UTC+8), from underneath that table.

Three of the deceased, later identified as Abdul Rahman, Ambo, and Sumarni, 39, were residents of Palopo, while another, Suratman, was from another city.

"[2] Several pieces of evidence were seized from bin Kasau, including an FN MAG gun, some ammonium nitrate and several pipes.