A minute silence has been held across Europe to remember the 129 people killed in the Paris terror attacks.
World leaders joined millions inside France who fell silent in honour of the victims of Friday's attacks.
France's President Francois Hollande stood alongside students at Paris' Sorbonne university at midday local time.
A spontaneous round of applause broke out afterwards:
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An overwhelming silence near the University of Sorbonne in Paris with la Marseillaise following at midday today as all Europe falls silent for one minute to remember victims of the #ParisAttacks
Posted by Nataliia Liubchenkova on Monday, 16 November 2015
Thousands also gathered at the Place de la Republique in central Paris, where candles and flowers have been laid to remember the dead.
Schools and businesses across France and Europe also joined in the minute's silence.
As a mark of respect and an expression of solidarity, world leaders at the G20 summit in Turkey also fell silent for one minute.
France's National Gendarmerie also posted video of their tribute:
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Hommage aux victimes des attentats de Paris
[HOMMAGE] Tous unis pour rendre hommage aux victimes des attentats de Paris
Posted by Gendarmerie nationale on Monday, 16 November 2015
As well as at Buckingham Palace:
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A minute's silence was observed at Buckingham Palace today to remember the victims of Friday's #ParisAttacks
Posted by The British Monarchy on Monday, 16 November 2015
Closer to home, President Michael D Higgins marked the silence at the French embassy in Dublin - where he also signed a book of condolence.
(l to r) French Ambassador to Ireland Jean-Pierre Thebault, President Michael D Higgins, Aurore Thebault and Sabina Higgins | Image: RollingNews.ie
The crowd outside the embassy then sung a rendition of 'La Marseillaise' in front of the building:
La Marseillaise sung in front of the Embassy after the minute of silence #Paris pic.twitter.com/ctumrsbRm2
— France in Ireland (@FranceinIreland) November 16, 2015
Other places of work stopped what they were doing to mark the occasion, including Newstalk:
Ireland is with #Paris. #minutedesilence at @NewstalkFM @todayfm @communicorpone. #NousSommesUnis. Pensées dévastées pic.twitter.com/d7ZcFGlY44
— Matthieu Chardon (@MatthieuFilms) November 16, 2015
Meanwhile, flags on government buildings and departments are flying at half mast:
The flag at Govt Buildings is at half mast as a mark of respect to those who died in Paris. pic.twitter.com/3CibwDPScO
— MerrionStreet.ie (@merrionstreet) November 16, 2015
On Sunday a special church service was held at Paris' Notre Dame Cathedral to honour those killed, and the cathedral's famous bells were rung 129 times to honour the victims of the attacks.
Paris Cardinal Andre Vingt-Trois told church-goers: "Our country knows the pain of mourning and must face barbarity propagated by fanatical groups".
Residents and tourists were searched before they were allowed into the building which was surrounded by police cars on all sides.
Francesca Gazzino, an Italian tourist, said: "This (the attacks) is unbelievable. It is unbelievable. But we must carry on, we should not let fear take over us.
Authorities have confirmed that 129 people died in the attacks, which were carried out by Islamist gunmen.
Some of the victims' names have been made public, but many relatives are still waiting to hear news of loved ones.
The suspected mastermind has been named by French officials as Belgian Abdelhamid Abaaoud.
Abaaoud, who also uses the name Abu Omar al Baljiki, is of Moroccan origin and is currently believed to be in Syria.
Henry McKean also went along to the French Embassy this morning and spoke with one man who lost his friend in the attacks, along with other Irish people who wished to express their solidarity with the French people.
