Some Bernie Sanders supporters upset that Planned Parenthood endorsed Hillary Clinton have noted that, when they took their frustrations to Twitter, official Planned Parenthood accounts blocked them.

Sanders supporter Lisa Haggard told the Daily Dot that @PPact, the organization’s political-action committee, blocked her after she sent it several pro-Sanders tweets. She provided a screenshot that shows the block.

Following publication, Haggard told the Daily Dot that she had been unblocked and followed by Planned Parenthood.

@HillaryClinton @PPact How much does an endorsement cost these days? A promise to prevent single payer? #bernieforwomen — FreckledNinja (@freckledninja) January 8, 2016

In an email to the Daily Dot, Planned Parenthood denied blocking Twitter accounts over their support for Sanders or because they had tweeted about that support to Planned Parenthood. The group did not respond to multiple questions asking on what grounds they blocked Twitter accounts.

A Planned Parenthood spokesperson declined during a phone call to explain how they decided who to block, citing security concerns.

Multiple people have complained on Reddit and Twitter about being blocked by Planned Parenthood’s PAC. However, the healthcare organization did not block all Twitter users who expressed disappointment in Planned Parenthood’s endorsement of Clinton.

@PPact blocked me for Praising @BernieSanders . you'd think i was praising trump by how fast they blocked me. #blockedbyPP — Shenanakins🌹 🇩🇴 (@anit0227) January 8, 2016

remember when @PPact blocked me for tweeting at them about antichoice statements by @HillaryClinton? oh yeah that was yesterday #blockedbyPP — Cleisthenes (@Cleisthenes1) January 8, 2016

Have a difference of opinion with #PlannedParenthood ? Don't worry, they'll just block you rather than answer you pic.twitter.com/kXQqtBGDra — PoliticalGiraffe (@AndyGiraffe69) January 9, 2016





/r/SandersForPresident

The Sanders campaign did not respond to a request for comment.

Update 4:52pm CT, Jan. 11: Planned Parenthood’s block of Lisa Haggard was lifted after publication of this article, which is noted above. We also added additional context about the extend of the reported blocking.

Illustration by Max Fleishman