Matteo Renzi, 39, has been sworn in as Italy's youngest prime minister ever.
The centre-left Democratic Party leader unveiled his government yesterday and said the broad coalition will bring hope to the economically stagnant country.
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The announcement came a day after a famine was declared in two areas of South Sudan following three years of civil war and severe inflation.
It is unclear what their alleged plans were.
Anti-terror police are currently questioning the men who were arrested at three separate locations in France.