Last month 16 people were arrested on accusations of planning or attempting to travel to the Syria or returning from its battlefields and training camps.
The soaring arrest figures - which compare with just 24 Syria-related terror arrests in 2013 - are evidence of an increased focus on the terror threat posed by a number of young Britons gaining paramilitary training and battlefield experience overseas.
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The company posted a 63.5% plunge in bottom line pre-tax profits to £176.4 million on a comparable 52-week basis.
Through the day, most of the cloud should break up to leave fine conditions for many with spells of sunshine.
The Eiffel Tower in Paris was plunged into darkness, with the Burj Khalifa in Dubia emblazoned with the Union Jack.