Germany's Chancellor Angela Merkel stepped into a diplomatic row that began when a senior US official was secretly recorded insulting the European Union.
Victoria Nuland swore about the EU during a conversation with the US Ambassador to Ukraine.
The exchange was apparently bugged and has since been posted online, with the Americans blaming the Russians.
ITV News Washington Correspondent Robert Moore reports:
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Thousands of demonstrators have marched through Boston in opposition to a right-wing rally in the city which was eventually cut short.
Some 1,000 counter-protesters blocked 500 neo-Nazi demonstrators as they tried to march to the site of the death of Hitler ally Rudolf Hess.
Clear skies and lighter winds will bring a chilly night for many