In June 2012, Argentina's President Kirchner attempted to thrust into the hands of David Cameron documents which called for UN talks on the sovereignty of the Falklands Islands.
Read: Deputy Political Editor Chris Ship's report on the incident which occurred at a meeting of G20 leaders in Mexico.
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The star celebrated his 70th birthday with his family before attending a celebrity-filled bash held in his honour.
Douglas Carswell told ITV's Peston On Sunday he wanted to "support" the government as a "critical friend" but refused to rule out a return.
Several of victims had life-threatening injuries, police said.