Twitter threatened for blocking IS accounts

The post appeared online on Sunday and was accompanied with a doctored image of Dorsey in a gun's crosshairs. Although the origin of the post is unknown, yet Twitter and law enforcement officials have already initiated a probe into its source, reported The Verge.

"We told you from the beginning it's not your war," the post said and added that the micro-blogging website did not pay heed to its warning and kept closing IS' accounts. However, the group still came back to the social media platform, it said and warned Dorsey that if its "lions" came and took away his breath, he will never come back to life again.

The IS has displayed "a uniquely adroit approach" in handling social media in its terror campaigns in the Middle East. It has frequently used Twitter to post beheading videos or urge its followers to launch attacks on police and military officials in the U.S. and Europe.

The group's accounts have been blocked as Twitter's terms of service prohibits "direct, specific threats of violence against others."

An official statement released by the website said that its team was investigating the veracity of these threats with relevant law enforcement officials.