The Latest on the stabbings at a Ku Klux Klan gathering in Southern California Saturday (all times local):

2:44 p.m.

Authorities say 13 people are in custody following a violent altercation that left three people stabbed at a Ku Klux Klan gathering in Southern California.

A spokesman with the Anaheim Police Department says six of those arrested are Klan supporters and seven counter-protesters.

All three people who were stabbed are believed to be counter-protesters. One person is in critical condition.

Sgt. Daron Wyatt says a Klan member was stomped on by counter-protesters during another altercation.

The KKK has a long history in Southern California, with Klansmen holding elected office in Anaheim in the 1920s.

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1:26 p.m.

Police say two people have been stabbed at a Ku Klux Klan gathering in Southern California.

Sgt. Daron Wyatt with the Anaheim Police Department tells The Associated Press two people who were part of a counter-protest at a KKK gathering Saturday afternoon in Anaheim were stabbed in separate incidents.

One person is in custody in one of the stabbings.

Wyatt says a Klan member was stomped on by counter-protesters during another altercation. Three people have been detained.

No information on any of victims' conditions was immediately available.

Authorities say the investigation is ongoing.