Scotland's independence supported by 200 business leaders

Some 200 business leaders have offered support for the idea of Scottish independence from Britain, hitting back after a similar letter from other companies argued there are too many uncertainties surrounding the Sept. 18 vote.

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The leaders argued that independence was in the best interests of Scotland. In an open letter in The Herald newspaper, the leaders say the real threat to Scotland's economy comes from the British Conservative Party's willingness to hold a referendum on taking Britain out of the European Union.

The letter Thursday comes the day after other leaders wrote that the case for independence had not been made, saying vital issues such as what currency the country would use remain unresolved.

Prime Minister David Cameron travels to Scotland Thursday to campaign to keep Britain together.

He will be speaking toCBI Scotland, an anti-independence business lobby organization,at itsannual dinner at 2:15 p.m. ET.

CBIbelieves Scots should vote against Scottish independence because "the best way to deliver jobs and prosperity for the people of Scotland is for Scotland to remain in the U.K.," according to the organization's website.