Nicola Sturgeon's arrest over SNP finances - in 80 seconds

Nicola Sturgeon has been arrested in connection with an ongoing investigation into the funding and finances of the SNP.

Police Scotland confirmed a 52-year-old woman was taken into custody as a suspect and was questioned by detectives.

The former first minister was later released without charge pending further investigations.

She later released a statement saying she was innocent "beyond doubt".

The BBC's Graham Fraser outlines what we know so far.

Video by Morgan Spence and Louise Andrew