ISIS released a video Thursday that purportedly shows militants in black masks beheading 10 blindfolded Christian men and shooting an 11th in Nigeria, as part of a grisly campaign to avenge the deaths of its leader Abu Bakr al-Baghdadi and the group’s spokesman.

The militant group’s video was produced by its own so-called news agency, Amaq, and was released the day after Christmas. Read more by clicking here: Fox 29