In response, one user said “don’t worry you’re next”. After sharing screenshots of the threatening tweet, Rowling said: “To everyone sending supportive messages: thank you the police are involved (they were already involved in other threats).” A Police Scotland spokesman said: “We have received a report of an online threat and officers are investigating.” Rushdie, 75, was due to give a lecture on artistic freedom on Friday in western New York when a man rushed the stage and stabbed the Indian-born author, who has been living with a bounty on his head since his 1988 novel “The Satanic Verses prompted Iran to urge Muslims to kill him. After hours of surgery, Rushdie has been on a ventilator and unable to speak since Friday night. The novelist was likely to lose an eye and have nerve damage to his arm and injuries to his liver. Hadi Matar, 24, of Fairview, New Jersey is accused of assaulting Rushdie. He pleaded not guilty to charges of attempted murder and assault at a court appearance on Saturday. Rowling has previously been criticized by transgender activists who have accused her of transphobia.