The Israeli military said Saturday it had established a "Yellow Line" demarcation in southern Lebanon, similar to the one separating its forces from territory still held by Hamas in Gaza, adding that it had already struck suspected militants approaching its troops along the line.

"Over the past 24 hours, IDF forces operating south of the Yellow Line in southern Lebanon identified terrorists who violated the ceasefire understandings and approached the forces from north of the Yellow Line in a manner that posed an immediate threat," the military said, referring to such a line for the first time since a ceasefire came into effect.

"Immediately after identification and in order to eliminate the threat ... forces attacked the terrorists in several areas in southern Lebanon," it said, noting that the military was authorized to take action against threats, despite the ceasefire.