Carrie Prejean has been dethroned as Miss California USA for "contract violations" including missing official pageant events, according to state pageant spokesman Roger Neal, CNN reported.
Prejean, 22, retained her title last month despite a controversy over topless photos and her statements against same-sex marriage.
Miss USA pageant owner Donald Trump was involved in the decision to fire Prejean, Neal said.
Runner-up Tami Farrell, who was Miss Malibu, will immediately assume the Miss california USA title, he said.