(CNN)Texas A&M has canceled a white nationalist protest planned in September, citing safety concerns. White nationalists, neo-Nazis and other extremist groups had planned to hold a "white lives matter" rally at Texas A&M on September 11. The school canceled the rally Monday evening "because of concerns about the safety of its students, faculty, staff, and the public." Richard Spencer, the white supremacist who helped found the so-called alt-right movement, was set to speak at the event, according to the Battalion, Texas A&M's student newspaper.