The country's import and export prices both rose for the third straight month in April on the back of the won's depreciation against the U.S. dollar.

According to data from the Bank of Korea on Tuesday, the country's export price index marked 117-point-92 in April, rising zero-point-one percent from a month earlier to continue the upward trend for the third consecutive month.

Although the figure marked an on-month increase, it dropped seven-point-five percent from a year earlier.

The import price index also rose zero-point-seven percent on-month to hit 139-point-81 in April as it, too, climbed for the third consecutive month.

The increase is mainly due to the won's depreciation against the U.S. dollar and the rise in oil prices, as the local currency weakened one-point-one percent from the previous month while the price of Dubai Crude, South Korea's benchmark, rose six-point-three percent on-month in April.