South Korea’s military said Saturday it detected North Korea removing some of its loudspeakers from the inter-Korean border, days after the South dismantled its own front-line speakers used for anti-North Korean propaganda broadcasts,

The military said further confirmation was needed on whether the dismantling was taking place across all areas.

Relations between the two Koreas were at an all time low in years under South Korea’s former President Yoon Suk Yeol, who was impeached over his martial law declaration last December, as the two sides engaged in tit-for-tat psychological warfare campaigns.