The Prime Minister has tweeted that he has spoken to his Libyan counterpart Ali Zeidan, who was the victim of a reported kidnapping earlier:
PM: Just spoken to PM Zeidan to offer our support for his efforts to build a stable, free and prosperous Libya http://t.co/EbRKQ3dQdi
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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.
The major party leaders' campaigns for the General Election will remain suspended on Wednesday following the Manchester terror attack.