JK Rowling has accused Emma Watson of being "ignorant of how ignorant she is" amid their ongoing disagreement about transgender issues.
The Harry Potter films' three central stars - Watson , Daniel Radcliffe and Rupert Grint - have publicly backed the rights of transgender people in recent years, often distancing themselves from the author when asked about her in interviews.
Rowling , 60, has previously been accused of transphobia, which she denies.
Watson, 35, discussed her relationship with the writer on a podcast last week, telling host Jay Shetty: "I think it's my deepest wish that I hope people who don't agree with my opinion will love me, and I hope I can keep loving people who I don't necessarily share the same opinion with."
Rowling has now shared a more than 600-word pos