South Korea's military resumed propaganda broadcasts against the Democratic People's Republic of Korea (DPRK) as planned in retaliation for DPRK's nuclear test, Yonhap news agency reported on Friday.
The anti-DPRK propaganda began to be broadcast from noon across the border toward the DPRK at 11 locations in frontline areas, installed with a set of large loudspeakers.
A military official was quoted as saying that the loudspeakers will be operated at random day and night for about 2-6 hours a day in each 11 locations.
The resumption came in retaliation for what the DPRK claimed was its first successful test of a hydrogen bomb on Wednesday.
The restarted broadcasting is expected to bring strong backlashes from the DPRK, which had called it a "direct act of declaring war."
The broadcasts will reportedly include messages against the DPRK regime as well as songs, weather forecast and news.
For fear of possible DPRK provocations like aimed strike at the loudspeakers, the South Korean military deployed troops at the 11 locations on the highest alert.
More military assets were deployed in the areas, including anti-tank missiles, anti-aircraft defense devices, K-9 self-propelled guns and unmanned reconnaissance aircraft.
The loudspeakers can send sound as far as 24 km at night and about 10 km in the daytime. Six mobile speakers, mounted on trucks, will be mobilized as occasion arises.
The anti-DPRK broadcasting was restarted in August 2015, for the first time in 11 years, amid a surge in tensions, but it was stopped in the same month after the Aug. 25 inter-Korean agreement that defused the tensions.
South Korea said DPRK's nuclear test was in violation of the Aug. 25 agreement, reached on Aug. 25 last year after marathon inter-Korean talks between top-level military advisors to their respective leaders.