Officials in the principality of Monaco said Friday that Princess Charlene is in “stable” condition, following South African media reports that she was unwell.

Palace says Princess Charlene of Monaco’s health ‘stable’ — Charlene, Princess of Monaco (L) reacts during the memorial service of King Goodwill Zwelithini at the KwaKhethomthandayo royal palace in Nongoma, South Africa, on March 18, 2021. – King Goodwill Zwelithini died on March 12, 2021 in the eastern city of Durban, aged 72, after weeks of treatment for a diabetes-related illness.His remains have been taken back to his birthplace, the small southeastern town of Nongoma in Kwa-Zulu Natal province, where he will be laid to rest after midnight. (Photo by Phill Magakoe / POOL / AFP) (Photo by PHILL MAGAKOE/POOL/AFP via Getty Images)

The palace said it will issue a communique on the former Olympic swimmer’s health later Friday. Princess Charlene, 43, who is married to Monaco’s ruler, Prince Albert II, has been on an extended stay in her home country of South Africa.

She underwent an undisclosed operation in South Africa last month. The French newspaper Nice Matin quoted Albert at the time as saying that “the intervention went well, the princess is resting and we think tenderly of her.”

She reportedly has been suffering from sinus problems.