UPDATED: Rose McGowan’s Twitter account has been suspended for violating Twitter’s rules, McGowan said in an Instagram post.

“Twitter has suspended me,” she wrote. “There are powerful forces at work. Be my voice.”

The actress has been vocal on the platform in recent days regarding the recent sexual harassment allegations surrounding Harvey Weinstein. She settled with Weinstein in 1997.

Many came to McGowan’s defense following her post. “Hey Twitter let us know which of these rules [Rose McGowan] broke,” Jessica Chastain tweeted. “Asking for multiple victims of sexual violence.”

Hey @Twitter let us know which of these rules @rosemcgowan broke. Asking for multiple victims of sexual violence. https://t.co/eiZjQeMAVg — Jessica Chastain (@jes_chastain) October 12, 2017

McGowan called Ben Affleck a liar on Tuesday, as well as telling him to “f— off,” after he stated that he had no knowledge of Weinstein’s activities, and posted several tweets encouraging her followers to sign a petition to dissolve the board of The Weinstein Company, which she alleges had knowledge of Weinstein’s behavior.

Ben Affleck fuck off — rose mcgowan (@rosemcgowan) October 10, 2017

Bob Weinstein is a POS. They allllll knew. pic.twitter.com/zWJZf52ywq — rose mcgowan (@rosemcgowan) October 11, 2017

I need all you beautiful people with a ☑️ to please help me AMPLIFY #dissolvetheboard https://t.co/a4JaOFeZfe — rose mcgowan (@rosemcgowan) October 11, 2017

The actress also tweeted support of Weinstein’s fellow accusers, including Asia Argento, and of Ronan Farrow, who authored the explosive New Yorker article, which revealed further alleged assaults committed by Weinstein.

.@asiaargento directing/re-enacting her own assault.We have been speaking out all along, the elites were just too greedy to care. https://t.co/tEVfPzzQ8a — rose mcgowan (@rosemcgowan) October 10, 2017

you made me proud, kid https://t.co/wg60aHByza — rose mcgowan (@rosemcgowan) October 10, 2017

McGowan will not have access to her account for 12 hours. Twitter provided no specific instances of her rule violation immediately after the suspension, but stated that she can delete the tweets that violate its rules to gain access to her account more quickly.

According to Twitter’s website, the platform “may suspend an account if it has been reported to us as violating our Rules surrounding abuse. When an account engages in abusive behavior, like sending threats to others or impersonating other accounts, we may suspend it temporarily or, in some cases, permanently.”

Twitter released a statement regarding the reasons for McGowan’s Twitter suspension Thursday morning.

“We have been in touch with Ms. McGowan’s team. We want to explain that her account was temporarily locked because one of her Tweets included a private phone number, which violates of our Terms of Service. The Tweet was removed and her account has been unlocked. We will be clearer about these policies and decisions in the future.