Russian Foreign Minister Sergey Lavrov has been taken to hospital after suffering a health problem following his arrival for the Group of 20 summit in Bali, Indonesian authorities said on Monday.
Three Indonesian government and medical officials said the Russian diplomat was being treated on the resort island.
All declined to be identified as they were not authorized to discuss the matter publicly.
Two of the people said Lavrov was being treated for a heart condition.
Officials said he was taken to Sanglah Hospital in the provincial capital, Denpasar. The hospital did not immediately comment.
Lavrov is the most senior Russian official attending the G-20 summit that begins on Tuesday but about such news there has been a reaction from the official Kremlin.
Moscow has denied reports that its Foreign Minister Sergei Lavrov is in hospital.
Russian Foreign Ministry spokeswoman Maria Zakharova suggested on Telegram that she is currently with Mr Lavrov.
“Here with Sergey Viktorovich in Indonesia we are reading the news and we can’t believe our eyes: it turns out that he has been hospitalized”, she is quoted as saying.