Multiple communities on Reddit have banned links from Elon Musk’s X platform after the tech mogul flashed a gesture that resembled a Nazi salute during an inauguration event. Musk has vehemently denied that his gesture of placing his hand on his heart and quickly extending his arm was a Nazi salute,

After Musk sparked a wave of ire with back-to-back Nazi salutes at an Inauguration Day event in Washington, D.C., on Monday, the bans quickly swept across Reddit. Such a move is not unheard of — moderators can ban links to specific sites, meaning that posts and comments including X links are easy to block.

In reaction to hand gestures Elon Musk made at a post-inauguration rally that many said resembled a Nazi salute, Reddit moderators took swift action.