US fast food chain Burger King has said its profits have been hit by the strengthening dollar.

Burger King has more than 11,500 restaurants worldwide and converts its overseas revenues into dollars.

Net income fell to $44m (£30m) for the three months to the end of December, 10% lower than the same period in 2007.

The company has now cut its forecast for the year ahead, estimating that movements in exchange rates will strip 10 cents per share out of profit.

"The complexity and rapidity in currency fluctuations during our second fiscal quarter, created by uncertainties in the currency markets, was difficult to forecast and anticipate," chief executive John Chidsey said.

However, revenue for the quarter rose 3%.

Burger King said it had opened 125 new stores during the quarter and was on track to add between 350 and 400 in the financial year. 

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Source: News.bbc.co.uk