WATCH: Hospital CCTV captures attack of Maute-ISIS bandts in 2017

A CCTV camera footage captured how the ISIS-inspired Maute group attacked Amai Pakpak Medical Center in Marawi City last year.

The video, which aired on 24 Oras, showed how armed men entered the premises of the hospital and killed three Christians—one cop and two employees of the integrated provincial health office of Lanao Del Sur—who were in the area during that period.

"Bumaba sila, dire-diretso pumunta sa akin. Tinutukan ako ng baril, ninerbyos ako Ma'am kasi nakikita kong binabaril nila 'yung mga tao," Yusoph Cali said.

"Kami naman nakatayo kami diyan napatunganga kami dahil sinong hindi matakot, makita mo patay na. Kaya nga ang iba, tumakbo doon sa likod kami naman unti-unti nang pumasok sa loob. Doon na pumuwesto sa loob ng administrative building," added Adjie Alie Taruc.

A year after the Marawi siege, some Muslim employees of the hospital recalled how they had extended help to the Christian personnel of the medical center.

"Pagdaan nila dito walang rehas... open ito so nilagyan namin ng kahoy para makadaan 'yung mga empleyado. Nakalabas sila lahat," one employee said.

"'Yung mga kasamahan namin na mga Christian, siniguro namin na walang mangyari sa kanila. Doon namin sila ipinalabas sa kabila para malapit-lapit sa brigade," Taruc added.

Christian employees were thankful with how Muslims treated and assisted them when the conflict broke out.

"Mafi-feel mo 'yung sincerity nila... 'yung pag-ano nila sa amin as Christians na they really wanted to help, to help us... to save us," said Jennie Trinidad.

"Ngayon ko lang to sinuot after a year kasi I'm always reminded with the fear, the pain. Infairness sa mga kasama namin na Muslim, hindi nila kami pinabayaan," added Jing Timbancaya.

There were no reported casualties on the staff of the hospital, the report said. Its normal operations resumed last January.

"Sabihin nating fully-operational pero mayroon pa ring kulang kasi may mga nawala. Ang ginawa namin, 'yung iba napalitan namin. 'Yung iba inutang namin sa mga companies so somehow naibibigay namin 'yung services sa mga tao," said Dr. Amer Saber. —Anna Felicia Bajo/NB, GMA News