Yasser Arafat boards a helicopter after falling ill in October 2004
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Arafat death 'always suspicious'

As Swiss scientists confirm that tests show the late Palestinian leader Yasser Arafat had high levels of radioactive polonium in his body, the BBC's John Simpson says that there always seemed "something highly suspicious" about his death.

Swiss scientists have confirmed that the late Palestinian leader Yasser Arafat had high levels of radioactive polonium in his body when he died, according to tests.

However, they could not say whether polonium poisoning had caused his death in 2004.

The BBC's World Affairs Editor John Simpson has been examining the findings and said that there always seemed "something highly suspicious" about Mr Arafat's death.