Eurostar have said snow and ice in the UK and northern France were leading to speed restrictions and delays on all its trains.
Six services were also cancelled, with customers told they could exchange their tickets for another date.
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The march took place on the second anniversary of the EU referendum.
Fans have gathered outside Wardhill Castle in Aberdeenshire hoping to catch a glimpse of the happy couple.
Other highlights during the weekend are Liam Gallagher, The Killers, Depeche Mode, Travis, Van Morrison, Blossoms and James Bay.