World Taekwondo Africa President Ahmed Fouly is in intensive care in his home country of Egypt after suffering a heart attack.
The 70-year-old is also vice-president of World Taekwondo.
Fouly's daughter shared the news of the heart attack in a Facebook post, with Nigerian newspaper Blueprint reporting that he is currently in Al-Aseel Hospital in the Egyptian city of Hurghada.
World Taekwondo confirmed the news and wished Fouly a full recovery.
"World Taekwondo's thoughts are with President Fouly and his family," the governing body said in a statement.
"We are glad to hear he is recovering in hospital and we wish him a full and quick recovery."
Others have also shared well-wishes on social media.
"I wish my dear friend General Ahmed Fouly, vice-president of World Taekwondo and President of World Taekwondo Africa, who is in intensive care after his heart attack, a quick recovery" said Turkey Taekwondo Federation President Metin Şahin.
"Our prayers are with you."
Fouly has been World Taekwondo Africa President since 2004.
He had led the Egyptian Taekwondo Federation since 2001 and was appointed to the World Taekwondo Council in the same year.
Fouly has overseen increasing success for African countries in taekwondo, with the continent earning five Olympic medals at Rio 2016.
Cheick Sallah Cissé of Ivory Coast was a standout performer, triumphing in the men's under-80 kilogram division.