Earlier this evening, a MORI poll showed YES support up 7 points on last month to 49 per cent; while a Panelbase poll had YES at 48 per cent.
YES Scotland Chief Executive Blair Jenkins said:
'These poll - like all the recent polls - show that we are in touching distance of success. The referendum is on a knife edge, and this will spur on everybody who wants and is working hard for a Yes to redouble their efforts.
'People know that a Yes vote is Scotland's one opportunity to achieve job-creating powers, protect our NHS from the damaging impact of Westminster cuts and privatisation, and ensure that never again do we get Tory governments imposed on Scotland that we have roundly rejected.
'The empty offer of a very few more powers from the No campaign has unravelled within 24 hours, in the face of a Tory revolt at Westminster. Only a Yes vote can secure all the powers that Scotland needs to create more jobs and secure our NHS for the future.
'As we say in response to all the polls, we are working flat out to ensure that we achieve a Yes vote, because it's the biggest opportunity we will ever have to build a fairer society and more prosperous economy.
'This referendum is unlike any that has been held before because of an expected record turnout - which we believe will favour the Yes vote.'
'People know that a Yes vote is Scotland's one opportunity to achieve job-creating powers, protect our NHS from the damaging impact of Westminster cuts and privatisation, and ensure that never again do we get Tory governments imposed on Scotland that we have roundly rejected.
'The empty offer of a very few more powers from the No campaign has unravelled within 24 hours, in the face of a Tory revolt at Westminster. Only a Yes vote can secure all the powers that Scotland needs to create more jobs and secure our NHS for the future.
'As we say in response to all the polls, we are working flat out to ensure that we achieve a Yes vote, because it's the biggest opportunity we will ever have to build a fairer society and more prosperous economy.
'This referendum is unlike any that has been held before because of an expected record turnout - which we believe will favour the Yes vote.'