David Cameron says he sold all investments in 2010 - the year he became Prime Minister - and that the fund was not used to avoid tax.
Pressure on the Prime Minister has been mounting, with even calls for Mr Cameron to resign.
Our UK correspondent Martha Holeyman has more.
IN: "This is the...
OUT: ....upcoming referendum"
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http://fsnradionews.com/feeds/0408cameronpanama-mh.mp3