Numerous calls alerted authorities to a racially-motivated attack involving alleged white supremacy members at a Lake Los Angeles park Sunday.

LA County Parks and the Los Angeles County Sheriff’s Department responded to Steven Sorensen Park at 1680 E. Avenue just before 4 p.m. for a report of a racially-motivated attack with a deadly weapon.

Numerous calls came in saying an alleged white supremacy members were attacking people in the park.

The Los Angeles County Sheriff's Department said the attackers were screaming things like "Heil Hitler" and waving around a wallet with a confederate flag.

Three people were arrested, and the incident was being investigated as a hate crime, deputies said.

No one was seriously injured, according to the LA County Parks Bureau.

The incident came a day after three people were stabbed, and others beaten, at a KKK rally in Orange County, which is about 90 miles south of Lake Los Angeles.

The Klans members clashed with counter-protesters at the Anaheim rally, resulting in a Klansman stabbing a counter-protester in the chest with an eagle figure at the end of the flag, according to police.