Scottish independence: Supporters launch 'yes' campaign

The campaign for a "yes" vote in the Scottish independence referendum has been launched.

At the event in Edinburgh, First Minister Alex Salmond declared his aim of geting one million Scots to sign the declaration.

Those who took the stage to voice their support for the campaign also included Scottish Green Party co-leader Patrick Harvie, actor Alan Cumming, former politician Dennis Canavan, poet Liz Lochead and actor Brian Cox.