Since Trump won the U.S. presidential election a mere week ago, numerous celebrities have described experiences of harassment and voiced their concerns over what Trump’s presidency means for the country. Most recently, Shameless star Emmy Rossum tweeted on Sunday about threats she received on Twitter from Trump supporters. Rossum wrote that she received messages “threatening to send me and my ‘ilk’ to the gas chambers” with “hashtags like ’#sieghiel.’” In a series of tweets, she added: “Telling anyone to ‘get ready for the trains’ in reference to WWII is disgusting and offensive. Reporting you to twitter is not enough. Back off.” Later that Sunday, Rossum insisted that she wasn’t scared by the threats, but deeply saddened: “This doesn’t scare me. It doesn’t cause me nightmares. I find it sad to recognize that this kind of vicious underbelly was there all along.” You can read Rossum’s tweets below.