Video released online shows one group of captives being shot and another group being beheaded on a beach.
A new video from the Islamic State in Iraq and the Levant (ISIL) purportedly shows the group killing captured Ethiopian Christians in Libya.
The 29-minute video released online on Sunday shows two groups of dark-skinned captives. It says one group is held by an ISIL affiliate in eastern Libya and the other by an affiliate in the south.
A masked fighter delivers a long statement before the video switches between footage of the captives in the south being shot to death and the captives in the east being beheaded on a beach.
The footage released online shows one group of about 12 men being beheaded by armed men on a beach and another group of at least 16 being shot in the head in a desert area.
It was not immediately clear who the captives were.
The video bore the official logo of the ISIL media arm Al-Furqan and resembled previous videos released by the group.

A text on the screen identifies the men as “followers of the cross from the enemy Ethiopian Church.”