South and North Korean military authorities held a daily phone call via a military hotline on Wednesday, the defense ministry said, a day after the North restored all severed communication lines with the South.

"The South and the North held their daily liaison phone call at 9 a.m. Wednesday, via the western communication line," the defense ministry said, referring to one of the two military hotlines set up across the border.

The other channel, known as the eastern line, is not fully operational yet due to technical problems, the ministry said. Officials said they are taking necessary steps to fix the problems.

On Tuesday, the two sides reopened all cross-border communication lines under an agreement between President Moon Jae-in and North Korean leader Kim Jong-un, 13 months after Pyongyang cut them off in protest over anti-regime propaganda leaflets flying in from the South. (Yonhap)