Aside from those killed at the school, others captured were reportedly bound and forced to walk two kilometers to the Poso river near the town where many captives were killed, including children and infants, and there were reports that the Poso River was clogged with bodies in the aftermath.
Selain mereka yang tewas di pesantren, orang lain yang ditangkap dilaporkan diikat dan dipaksa untuk berjalan dua kilometer ke sungai Poso di bagian selatan kota, tempat banyak tawanan tewas, termasuk anak-anak dan bayi, dan ada laporan setelahnya bahwa Sungai Poso tersumbat oleh mayat-mayat.