The 25-minute video, made by an ISIS-affiliated hacker group calling itself the Sons of the Caliphate Army, came in response to recent efforts by the two tech companies to rid their platforms of terrorists, according to The Wall Street Journal.

The video shows Zuckerberg and Dorsey’s pictures engulfed in flames and covered in bullet holes, though it never explicitly threatens their lives. It also shows screenshots of ISIS fighters’ accounts on the platforms, as if to boast that the companies’ attempts to shut down terrorist profiles aren’t making headway.

At the end of the video, the Journal reports that the group writes this: “To Mark and Jack, founders of Twitter and Facebook and to their Crusader government. You announce daily that you suspended many of your accounts, and to you we say: Is that all you can do? You are not in our league.”

Earlier this month, Twitter announced it had deleted 125,000 accounts associated with the terrorist group in the previous six months. And on Wednesday, Apple, Twitter, Snapchat, Facebook, and other tech teams gathered at the Department of Justice to discuss strategies to combat ISIS rhetoric and recruiting online.

Dorsey was also threatened by the group in a video last year.

Fortune has reached out to Facebook and Twitter for comment and will update this post with their response.