A public inquiry is to begin later in Salisbury, England, to examine how a woman was killed in a 2018 poisoning blamed on Russian agents.

44-year-old Dawn Sturgess died after spraying herself with Novichok - the same chemical weapon used to target a former Russian spy four months earlier.

UK correspondent Gavin Grey says the inquiry will examine the circumstances leading up to the death and establish where the responsibility for the incident lies. 

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