It was the first event of this kind since the Paris landmark was devastated by fire in April 2019.
Notre Dame de Paris, the beloved French cathedral, is not saved yet, the general overseeing the restoration of the landmark after the devastating April fire has said.
The cathedral was severely damaged in a devastating fire in April.
French authorities have no grounds to believe that the fire that wrecked Paris' Notre-Dame Cathedral in April was the result of criminal activity, although they are looking into the possibility of negligence, said the Paris prosecutor's office.
Two months after a devastating fire destroyed the cathedral's spire and roof, the Archbishop of Paris, Michel Aupetit, held mass for the anniversary of the cathedral's dedication as a place of prayer.
The roof renovation company repairing Notre Dame's roof confirmed to Euronews their workers smoked on top of the roof but denied it being at the origin of the fire that ravaged the gothic monument a week ago.
Three churches destroyed by fires in the United States have seen a spike in donations following the flooding of funds to Notre-Dame Cathedral.