Pope Francis is in stable condition after his episodes of acute respiratory failure on Monday, the Vatican said Tuesday.

Pope Francis remained in stable condition Tuesday night, relying only on supplemental oxygen during the day after experiencing respiratory crises the day before, the Vatican reported. However, doctors will resume using a ventilation mask for him at night.

Pope Francis, batting double pneumonia in hospital, remained stable throughout the day on Tuesday and did not have any new respiratory crises, the Vatican said.Francis, 88, had suffered two episodes of what the Vatican described as "acute respiratory insufficiency" on Monday.