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The Queen has revealed what the secret message says she put in the Games' baton, which has travelled more than 100,000 miles around the world before arriving back in Glasgow.
Reading it out as she formally declared the Games open, she said: "The baton relay represents a calling together of people from every part of the Commonwealth and serves as a reminder of our shared ideals and ambitions as a diverse, resourceful and cohesive family."
Wishing her best wishes to the competing athletes, the Queen added: "Your accomplishments over the coming days will encourage us all to strengthen the bonds that unite us.
"You remind us that young people, those under 25 years of age, make up half of our Commonwealth citizens; and it is to you that we entrust our values and our future.
"It now gives me the greatest pleasure to declare the 20th Commonwealth Games open."
ITV News' Scotland correspondent Debi Edward reports from Glasgow during the opening ceremony:
Clashes between Israel and Hamas continued in Gaza today, as international airlines cancelled more flights to Tel Aviv.
International airlines cancelled 80 flights, despite Israeli assurances that the Ben Gurion airport was safe.
US Secretary of State John Kerry met with both Israeli and Palestinian leaders in the hope of brokering a ceasefire.
ITV News Correspondent Dan Rivers reports: