A regional official with the National Labor Relations Board (NLRB) issued a complaint claiming SpaceX violated the workers' rights under federal labor law to band together and advocate for better working conditions, according to Kayla Blado, a spokeswoman for the agency.

The letter sent to SpaceX executives in June 2022 focused on a series of tweets Musk had made since 2020, many of which were sexually suggestive. The employees claimed Musk's statements did not align with the company's policies on diversity and workplace misconduct, and called on SpaceX to condemn them.

(Reporting by Daniel Wiessner in Albany, New York; Editing by Chris Reese)

By Daniel Wiessner