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Samsung announces 17% profit rise

South Korea's Samsung Electronics has announced a 17% rise in profits in the last three months of 2011, as smartphone sales boosted earnings.

Net profit for the quarter was 4 trillion won ($3.6bn; £2.3bn), up from 3.42tn won in the same period the previous year, Samsung said.

However, for the whole of 2011 net income was down 15% compared with 2010.

Samsung's parent group is planning $42bn (£26.8bn) in capital investment this year.

Rob Young reports.