The Harry Potter creator said she felt “very sick” after hearing the news and hoped the novelist “would be OK”. 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 police are involved (already involved in other threats).” A spokeswoman for Police Scotland 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. The accused shooter, 24-year-old Hadi Matar of Fairview, New Jersey, pleaded not guilty to charges of attempted murder and assault in a court appearance on Saturday. Rowling has previously been criticized by transgender activists who have accused her of transphobia. The Morning Update and Afternoon Update newsletters are written by Globe editors, giving you a concise summary of the day’s most important headlines. Sign up today.