The California Civil Rights Department is investigating complaints by seven workers that SpaceX execs “discriminated against women, joked about sexual harassment and fired workers for raising concerns,” reports Bloomberg and Reuters.

The same agency is also suing Tesla over charges of operating a “racially segregated workplace.”

In the SpaceX complaints, employees cite a pattern of discrimination, as well as inappropriate tweets by Musk that they said they couldn’t easily avoid because he uses the platform for important company announcements.