Twitter (TWTR) has announced that it will be reviewing its harassment policies following Zelda Williams’ decision to leave the website.

Williams announced that she would be leaving Twitter and several other social media websites due to the abuse she received from users following the death of her father, Robin Williams. The late comedian’s daughter received support from fans who wished her no harm or ill will, reports CBS News.

Following the incident with Zelda Williams, Twitter said it had suspended a number of accounts that were related to Williams’ being bullied. Del Harvey, head of the social media company’s Trust and Safety Team, said that it “will not tolerate abuse of this nature,” and that the social media website will work to improve policies to handle matters such as this, CBS News notes.

“While I am truly sorry for what the Williams family is experiencing during this time, I am concerned that it takes an event like this to bring heightened attention to a problem that so many face every day,” Soraya Chemaly, a media critic and feminist activist, told The Washington Post.

TWTR shares were down 1% as of Friday afternoon.

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