Leaders from around the world have offered their condolences after the Barcelona attack.
The Spanish royal family described the attackers as "assassins and criminals who won't terrorise us".
Here at home President Michael D Higgins says it was with great sadness that he learned of the tragic loss of life in Barcelona.
While Taoiseach Leo Varadkar has condemned the attack describing it as 'callous'.
The Govt & people of Ireland stand with the people of Barcelona at this time of immense grief. We offer our sympathy, solidarity & support.
— Leo Varadkar (@campaignforleo) August 17, 2017
Spanish actor Antonio Banderas says he's "fused in a hug with Barcelona"
JK Rowling calls it "one of the world's greatest cities" - while Cher has paid tribute to its "wonderful people".
Here are some more reactions and tributes:
My thoughts and prayers are with the victims and their families and friends in Barcelona. Today, we all stand with Spain.
— Arnold (@Schwarzenegger) August 17, 2017
Michelle and I are thinking of the victims and their families in Barcelona. Americans will always stand with our Spanish friends. Un abrazo.
— Barack Obama (@BarackObama) August 17, 2017
All my love to Barcelona today. 💔
— Ellen DeGeneres (@TheEllenShow) August 17, 2017
Thoughts are with the people of Spain and Barcelona tonight.
— Hozier (@Hozier) August 18, 2017
Barcelona. I am so sorry. Another shameful day for humanity.
— Bette Midler (@BetteMidler) August 18, 2017
#TotsSomBarcelona Our thoughts are with the victims of the Barcelona attack👇 https://t.co/wi7yiUH5qK
— FC Barcelona (@FCBarcelona) August 17, 2017
Landmarks around the world are also paying tribute:
🇫🇷The Eiffel Tower turns its lights off for #Barcelona.#Barcelone #SomosBarcelona #Catalogne @Anne_Hidalgo pic.twitter.com/FfcqXvLNos
— Charles Baudry (@CharlesBaudry) August 17, 2017
One World Trade shines red & yellow in solidarity with the people of Spain tonight #PrayforBarcelona pic.twitter.com/9KwxkYlluS
— Max Guliani (@maximusupinNYc) August 18, 2017
