Independence battle tightens as Scots chide negative pro-UK campaign - poll

LONDON (Reuters) - More Scottish voters are favouring independence as criticism grows that the campaign to keep them in the United Kingdom is too negative, according to an opinion poll on Wednesday.

A TNS poll found support for Scotland to vote to leave the United Kingdom after more than 300 years in a Sept. 18 referendum nudged up one percentage point to 30 percent while opposition rose one point to 42 percent, leaving 28 percent undecided.