The navies of the two Koreas have successfully exchanged radio communications in the first test of a South-North military hotline since the division of the Korean Peninsula in 1945.

During the three-hour test, patrol boats of the two sides used a joint radio frequency and Hallasan and Baekdusan as call signs.

The trial communications conducted on Monday morning were in line with a recent bilateral agreement on preventing accidental armed clashes at the West Sea border.

The two sides also tested flag and flash signals, which will be used in case radio communications are not possible due to equipment failure or if the distance between patrol boats of the two sides is too close.

Meanwhile, South and North Korea are also set to halt more than four decades of propaganda broadcasts along the demilitarized zone beginning midnight Monday.

The Defense Ministry said that its ten minute farewell broadcasts of "Sound of Freedom" would feature wishes for the well-being of Both South And North Korean soldiers.

After three days of inter-Korean military talks at the North's border city of Gaesong last week, the two Koreas agreed to take measures to reduce tensions along their shared border.