Extremist groups ISIS has threatened to kill Facebook founder Mark Zuckerberg and Twitter founder Jack Dorsey in a new video. The terrorist group claim the two giant social media company have banned thousands of the terrorist accounts in the 25 minutes video titled "Flames of the Supporters."
Twitter confirmed that they have banned more than 125,000 accounts this month alone because of users who made threats or promoted terrorist acts.
The threat which says "To Mark and Jack, founders of Twitter and Facebook and to their Crusader government.
"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," the voiceover continues.
"If you close one account we will take 10 in return and soon your names will be erased after we delete you sites, Allah willing, and will know that we say is true [sic]."
Part of the video also appears to show them hacking Facebook and Twitter accounts by changing profile pictures and posting ISIS propaganda.
The terrorists claim they've hacked more than 10,000 Facebook accounts, more than 150 Facebook groups and more than 5,000 Twitter profiles.
In a statement, a Twitter spokesman said: "Like most people around the world, we are horrified by the atrocities perpetrated by extremist groups. We condemn the use of Twitter to promote terrorism."