YouTube today expanded its hate-speech policy to ban more white supremacist videos, such as those that promote Nazi ideology. The site is also banning hoax videos that deny the existence of the Holocaust and other well-documented violent events.

The move will likely result in bans for many white supremacist YouTubers and other people spreading hateful ideologies.

"Today, we're taking another step in our hate-speech policy by specifically prohibiting videos alleging that a group is superior in order to justify discrimination, segregation, or exclusion based on qualities like age, gender, race, caste, religion, sexual orientation, or veteran status," YouTube's announcement said. "This would include, for example, videos that promote or glorify Nazi ideology, which is inherently discriminatory. Finally, we will remove content denying that well-documented violent events, like the Holocaust or the shooting at Sandy Hook Elementary, took place."

YouTube, which is owned by Alphabet subsidiary Google and has been under pressure to ban more offensive content, said it will begin enforcing the updated policy today. "However, it will take time for our systems to fully ramp up, and we'll be gradually expanding coverage over the next several months," YouTube said.