A young woman wept while complete strangers on Paris's normally bustling subway stared at each other as metro trains ground to a halt for one minute of haunting silence in memory of the victims of the Charlie Hebdo massacre.
Muslims at the Paris Mosque fell quiet. Catholics listened inside Notre Dame Cathedral as its gargantuan bell tolled, the sound echoing around the Ile de le Cite.
President Francois Hollande ordered that the Eiffel Tower switch off its lights.
Magali de Rapheles (22) shed a tear as she observed the silence on the No 13 subway line. "A minute of silence is important to remember and to process - even on the metro," she said.
In Dublin the French Embassy on Ailesbury Road in Ballsbridge will fly its flag at half-mast until Saturday. A book of condolences will be open today from 10am to 5pm. Journalists from the Irish Independent were joined by colleagues from independent.ie, 'Sunday Independent', 'Herald', 'Star' and 'Sunday World' for a minute's silence.
Independent News and Media Editor-in-Chief Stephen Rae said: "At INM we are an organisation that has seen two of our journalists, Veronica Guerin and Marty O'Hagan, assassinated because of the campaigning work they carried out.
"At that time many international media organisations stood in solidarity with us.
"That's why it's important that we hold this 60 seconds of silent solidarity in memory of the journalists who were cruelly and cold-bloodedly cut down in Paris."