The Duke of Cambridge will not attend the event at London's ExCel centre as he remains in Anglesey in his role as an RAF search and rescue helicopter pilot, a St James' Palace spokesman said.
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Flaviu, a two-year-old Carpathian lynx, was reported missing from Dartmoor Zoological Park on July 7, triggering a search operation.
The report also said that many graduates do not even see a 'earnings premium' from their years at university.
The country's counter-terrorism forces have regained control of the facility.