Foreign Secretary William Hague has told ITV News Political Editor Tom Bradby that Iraq faces a "severe challenge to its existence as a state" and the current conflict will be a "decisive moment in its history."
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Explosives experts were called to the nuclear reprocessing site in Cumbria, to help deal with chemical substances.
The arrests were made on suspicion of producing and disseminating pedophilia content on the internet, the country's Justice Ministry said.
The A4-sized sketch originally went for £75 when it was first sold.