Watch out Mark Zuckerberg: the Islamic State is coming for you. The terror group – well known for their love of social media – has declared war on Facebook CEO Mark Zuckerberg and Twitter founder Jack Dorsey in a newly released video.

 The video, which was first spotted by Vocativ, features the faces of Dorsey and Zuckerberg being riddled with bullet holes. It goes on to announce, “to Mark and Jack, founders of Twitter and Facebook and to their crusader government, you announce daily that you suspended many of our accounts”, before going on to threaten that, Allah willing, “if you close one account we will take 10 in return and soon your names will be erased”. 

Isis has a bit of a love-hate relationship with Facebook and Twitter. While the terror network makes extensive use of both platforms to radicalise potential recruits and disseminate its propaganda worldwide, both Facebook and Twitter are doubling down on their efforts to drive extremists off the site. In March last year reports of a threat emerged against Dorsey and Twitter employees. While this is the first time that a direct threat has emerged against Zuckerberg, given his enormous wealth and impressive security detail (apparently he has 16 bodyguards on his payroll), we’re not too worried for his wellbeing.

Meanwhile, Zuckerberg is busy waging his own struggle - against Facebook employees who have reportedly been defacing 'Black Lives Matter' messages at the company's headquarters. According to Gizmodo, Zuckerberg emailed employees to ask them to stop crossing out "Black Lives Matter" on the company's signature wall, and replacing it with the message "All Lives Matter". In a message to staff, Zuckerberg wrote that he was "investigating" the incident, which he described as "malicious" and "disrespectful". Facebook, like many tech companies, has a poor record on diversity, which goes some way towards explain why Zuckerberg is so keen to be showing support to the Black Lives Matter movement. 

You can watch an edited version of the Isis video below – don't worry, it's SFW.