Pope Francis is “slightly unwell” and exhausted after numerous audiences at the Vatican, according to the Holy See.

The head of the Catholic Church mentioned his poor health during a meeting with representatives of the European Rabbinical Conference on Monday, according to the ANSA and Adnkronos news agencies.

The pontiff had a long day filled with audiences and preferred to greet the rabbis individually, a spokesperson for the Holy See, Matteo Bruni, said in a statement.

Francis’ planned activities for Monday are expected to continue as usual.

The 86-year-old Argentine’s health has been a concern for Catholics worldwide in recent times, with two hospitalizations this year.

In March, he was treated for pneumonia, and a few months later, underwent abdominal surgery under general anaesthetic.

When asked about his health, the Pope has repeatedly insisted: “I am still alive!”