Police say they are questioning an individual over "suspicious envelopes". Two letters - one addressed to Barack Obama and the other addressed to Senator Roger Wicker - have been found to contain the poison ricin.
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David Cameron has begun a whirlwind tour of Europe to discuss his terms for renegotiating the UK's membership of the EU with key leaders.
Through the rest of today showers will continue across many northern areas, whereas for much of England and Wales it'll stay largely dry.
An investigation found patients were sworn at by staff, left in soiled beds and restrained with furniture.