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Four treated for cyanide poisoning in Stornoway

25 October 2012 Last updated at 15:37 BST

A fourth person at the centre of a suspected cyanide poisoning incident in the Western Isles has been released from hospital in Stornoway.

Three other people were also treated as a precaution.

The poison is understood to have been in storage in a lodge on a sporting estate on the Isle of Lewis.