ARTICLE AD BOX
SNP MP Lisa Cameron has defected to the Conservatives.
The East Kilbride, Strathaven and Lesmahagow representative was facing a selection contest to remain as the SNP's candidate at the next general election.
She told the Scottish Daily Mail she quit because of a "toxic and bullying" culture in the party's Westminster group.
She has been welcomed to the Tories by the party's MSPs.
Dr Cameron claimed previously that she had been "ostracised" by the SNP after speaking out over the handling of allegations against former Westminster chief whip Patrick Grady.
She did not rule out standing down and triggering a by-election if she did not win the SNP nomination.
This breaking news story is being updated and more details will be published shortly. Please refresh the page for the fullest version.
You can receive Breaking News on a smartphone or tablet via the BBC News App. You can also follow @BBCBreaking on Twitter to get the latest alerts.