Paris police
Paris's Notre-Dame to celebrate first mass after fire
There will be just some 30 people - half of them clergy - although the mass will be broadcast live on Catholic TV channel KTO.
Some 7,400 police were deployed and they made 380 arrests. Thirty-eight people were wounded, including 14 police officers with one being hit on the head with a paving stone.
The blaze in the French capital's trendy 16th arrondissement also left 27 people - including three firefighters - with minor injuries.
Police fired water cannon and teargas in the afternoon to disperse groups of protesters in sporadic, brief clashes with riot police on the Champs-Elysees and adjacent streets.
Leftwing politicians have expressed outrage at the videos, which have gone viral on social media, showing the teenagers kneeling as riot police barked orders at them.
The six-week operation also seized more than 20 tonnes of the trinkets stored in depots outside the capital.
Four of the victims suffered severe wounds, the source said.
A border police spokesman said the two artists had been arrested along with nine others from their entourages.
Interior Ministry spokesman Pierre-Henry Brandet told Reuters the driver was a “depressive” aged 32 and described him as an unstable character.
One policeman has been placed under formal investigation for suspected rape and three others for unnecessary violence .
Louvre officials said the museum was closed and that visitors already inside when the attack took place were being kept there.