Pope Francis, who has been in hospital for two weeks with double pneumonia, is in a "stable" condition, the Vatican has said while again declining to offer a prognosis.
The 88-year-old had suffered a breathing "crisis" yesterday, but the Vatican said.
It said this was not repeated, adding that he was still receiving oxygen but did not have a temperature.
"The clinical conditions of the Holy Father have remained stable," it said.
Pope Francis had "alternated non-invasive mechanical ventilation" (an oxygen mask) with "long periods of high-flow oxygen".
"The haemodynamic parameters have always remained stable," it added, referring to measurements such as heart rate and blood pressure.
"He has continued to eat and has regularly undergone respiratory physiotherapy, actively cooperating," it said.
"He has not presented episodes of bronchospasm," it added.
The Vatican said the Pope "is still alert and oriented".
"In the afternoon he received the Eucharist, then dedicated himself to prayer," it said.
However, it said: "The prognosis remains reserved."
Earlier in a statement, the Vatican reported the Pope had a "peaceful night".
Pope Francis was hospitalised on 14 February with bronchitis, but his condition deteriorated into double pneumonia.
Medical experts have warned that his age and the chronic respiratory disease from which he suffers mean a sustained recovery will take time.
The Pope, head of the world's nearly 1.4 billion Catholics, had part of one of his lungs removed as a young man and has suffered increasing health problems in recent years.
He is prone to bronchitis and suffers from hip and knee pain which has made him reliant on a wheelchair.
Nonetheless, the Pope has continued to work from the special hospital suite on the Gemelli's tenth floor.
