Alberto Nisman
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Witnesses quizzed over Alberto Nisman death in Argentina

Investigators in Argentina are continuing to question key witnesses following the death of Alberto Nisman, a state prosecutor whose body was found just hours before he was due to testify to a congressional committee.

Mr Nisman had accused several senior government figures of involvement in a plot to cover up Iran's alleged role in the 1994 bombing of a Jewish community centre in Buenos Aires.

Wyre Davies reports.

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