The former prime minister Gordon Brown has said there is "a clear common sense" argument for Scotland to remain part of the United Kingdom, after launching Labour's pro-union campaign.
Scottish First Minister Alex Salmond revealed in March that a referendum on independence would take place in September 2014.
Addressing a rally in Glasgow, Mr Brown said that Scottish values can best be realised as part of the UK and that Britain is strongest when pooling its resources together, citing the examples of the NHS, mining, shipbuilding and other core industries.
But Scottish nationalists have dismissed his claim that taxes would have to rise to fund its welfare plans if the country was granted independence.
More top news
Showers continue across some southern and western areas tonight.
A care worker and special constable has been jailed for attempted murder after lacing her colleagues' drinks with bleach.
A woman was attacked and killed by fire ants as she sat planning the funeral of her mother, who died the day before.