A new poll has shown an increase in support for independence as the first televised head-to-head clash between campaign leaders Alex Salmond and Alistair Darling gets under way.
The Ipsos MORI poll for STV News showed a rise in support for the Yes campaign, while support for the Better Togther No campaign is unchanged.
Some 40% of those who said they were "certain to vote" said they supported independence - an increase of four percentage points from June.
Meanwhile the proportion of people who favour Scotland staying part of the UK remained static at 54%. Just 6% of those polled said they had not yet decided how they would vote, down from 10% in June.
A total of 1,006 people north of the border were questioned between July 28 and August 3 for the research.
The first debate between Alistair Darling and Alex Salmond had barely finished when their respective teams went into battle.
Campaign rivals Alex Salmond and Alistair Darling both traded blows in a surprisingly feisty televised debate on Scottish independence.
Alistair Darling is getting 'feisty' during the STV Debate.