A senate official has said that a laboratory test confirmed a letter to the Senator contained poisonous ricin, according to the Associated Press. More tests are expected, the official added.
More top news
Strong winds and showers look set to hit the UK this weekend as wind speeds of up to 70mph are expected in parts of the UK.
A police constable has been jailed after admitting arranging to have sex with a 15-year-old runway while investigating her disappearance.
Five-year-old Isis was told she could not have her name printed on a personalised Nutella jar as it may be "viewed as inappropriate".