Pope Francis celebrated the 12th anniversary of his pontificate with the medical staff of Rome's Gemelli Hospital, who brought a cake with candles to his room.

According to the Holy See Press Office, the Pope also followed the Spiritual Exercises for the Roman Curia via video link with the Paul VI Hall, and resumed respiratory therapy.

He continues to alternate between non-invasive mechanical ventilation at night and high-flow oxygenation with nasal cannulas during the day.

His clinical situation remains stable within a complex condition. A new medical bulletin is expected on Friday evening.