Tiger Woods says that his mother, Kultida, has died at age 80. The golfer credited her for his success and encouraging his signature look of red shirts on Sunday.

Tiger Woods announced that his mother, Kultida, died on Tuesday morning. No cause of death was immediately available. “My Mom was a force of nature al her own, her spirit was simply undeniable,” Woods said in a statement on social media.

Tiger Woods says his mother, Kultida, has died. Woods did not give details on the Tuesday morning death of his 78-year-old mother.