What's happening in Scotland's ruling party, the SNP? – video explainer

Nicola Sturgeon, Scotland's longest-serving first minister, made a surprising move earlier this year by resigning, leaving political observers puzzled. However, the unexpected developments did not end there. Sturgeon was arrested by police investigating allegations of financial misconduct in the SNP after her husband, Peter Murrell, was arrested as part of the same investigation, plunging the party into turmoil. Both of them were released without charge and said they were confident they had done nothing wrong.

The Guardian's Scotland correspondent, Libby Brooks, explains what impact the arrests of senior SNP figures is having on the party and the prospect of another independence referendum