Donald Douglas, the longtime executive director of the Public School Athletic League, died late Friday night, the league announced.

Douglas was 58, according to his Facebook page.

Douglas died of a heart attack, while vacationing on the island of Jamaica, after a bad fall eventually caused a blood clot to form, according to sources. The Brooklyn native and Bushwick High School alum had retired this week from his post. He was PSAL director since 2004, when he was promoted from deputy director, and spent more than 35 years working for the New York City Department of Education.

“PSAL mourns the loss of one of our beloved leaders, Donald J. Douglas,” the league said in a statement. “A pillar of the PSAL, we appreciate the years of service he gave to NYC. Our thoughts and prayers are with his family and the entire PSAL/DOE community.”

— Additional reporting by Zach Braziller