SEOUL (REUTERS) - Samsung Electronics Co Ltd shares opened sharply lower on Tuesday (Oct 11), as the company's decision to halt sales and exchanges of the Galaxy Note7 smartphone weighed on sentiment.

Samsung shares fell as much as 5 per cent to 1.596 million won, their lowest since Sept 30. Shares were down 4.2 per cent as of 0006 GMT (8.06am Singapore time), underperforming the broader market that was down 0.1 per cent.