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29 June 2015 Last updated at 16:40 BST
It is all because of a terrorist attack that happened on Friday, which affected people from Britain and many other countries.
Prime Minister David Cameron said the events had "shocked the whole of the world".
The Queen has also sent her "deepest sympathies" to the families of those lost their lives.
Watch Ricky's report.
Hundreds of people have returned home safely to the UK after tragic events in the country of Tunisia in north Africa.