South Korea resumed its loudspeaker broadcast campaign on Jan. 8 after North Korea conducted its fourth nuclear test. / Yonhap

By Lee Han-soo

The South Korean army is considering adding an electronic display of K-pop girl bands to its loudspeaker broadcasts towards North Korea, in its latest psychological warfare bid.

The move follows the North's fifth nuclear test Friday, as the South plans new sanctions and countermeasures against the hermit kingdom, according to TV Chosun.

The electronic display, which was last used in 2004, will show K-pop girl bands and international and domestic news to the North. A mobile version of the display ― which can be seen up to 15 kilometers ― also is being considered.

And the army will increase the number of loudspeakers fourfold.

The army believes the measures will have a big impact on North Koreans living near the border.