Extremist group ISIS has released a video threatening Facebook founder Mark Zuckerberg and Twitter CEO Jack Dorsey.

Vocativ reportedly found the 25-minute video, in which members of ISIS threaten to fight back against the attempts that have been made to remove their presence from these social media platforms.  The video shows photographs of the two social media moguls with bullet holes in them and closes with a direct threat to Zuckerberg and Dorsey.

“You announce daily that you suspend many of our accounts, and to you we say: Is that all you can do? You are not in our league. If you close one account we will take 10 in return and soon your names will be erased after we delete your sites, Allah willing, and will know that we say is true," the video text says.

A group of hackers, known as the "sons of the Caliphate Army," released the video as part of an ongoing propaganda campaign targeting those who seek to diminish ISIS' online presence. Vocativ also reports that previously ISIS had charged its supporters with targeting Twitter employees and had even asked them to kill Jack Dorsey.

Newsweek noted the video claimed that more than 10,000 Facebook accounts, 150 group pages and 5,000 Twitter accounts had been hacked and given to supporters. However, previous internet attacks by ISIS have been fairly unsuccessful, and now governments are getting involved in the fight to repress them. British Chancellor George Osborne says that Britain's cyber-security services are developing the technology to launch cyber attacks that will damage ISIS' systems and communications.