Milwaukee Bucks star Giannis Antetokounmpo’s father, Charles Antetokounmpo, has died at the age of 54 from a heart attack, the Milwaukee Journal Sentinel’s Rick Barrett reports.

The Bucks released a statement about Charles’ passing on their official website.

The Bucks family is heartbroken about the sudden death of Giannis' father, Charles. The entire organization, his teammates and coaches are here to support Giannis and his family during this incredibly difficult time. Charles was a big part of the Bucks and will be terribly missed by us all. On behalf of ownership, we express our utmost condolences and offer our prayers to Giannis and his family.

Charles Antetokounmpo passed in his home in Milwaukee, where he had been living for the past few years. He is survived by his wife Veronica and five children, including Giannis and former New York Knicks forward Thanasis.

Giannis will likely miss some preseason action for the Bucks following his father's passing. The Bucks will play three of their four preseason games this week, starting with a road game against the Dallas Mavericks on Monday, October 2.