Kultida Woods, the mother of Tiger Woods, golf’s biggest star, died Tuesday, according to the 15-time major winner. He did not provide give her cause of death.

The pro golfer is mourning the loss of his late mother, Kultida. Learn more about the woman who raised Tiger and his dad here.

Kultida Woods, the Thai-born mother of Tiger Woods, died Tuesday morning, a week after being seen attending his indoor TMRW Golf League in Florida. Woods did not reveal how his 78-year-old mother died in his social media post announcing her death.