Meanwhile, action-packed events were taking place simultaneously to the north, on the right side of the 25th Division line. Half an hour before midnight, 31 August, an enemy self-propelled high-velocity gun from across the Nam fired shells into the position of G Company, 35th Infantry, overlooking the river.
Within a few minutes, enemy artillery had taken under fire all front-line rifle companies of the regiment from the Namji-ri bridge west. Under cover of this fire a reinforced regiment of the N.K. 7th Division crossed the Nam River and attacked F and G Companies, 35th Infantry. Other enemy soldiers crossed the Nam on an underwater bridge in front of the paddy ground north of Kŏmam-ni and near the boundary between the 2nd Battalion, led by Lt. Col. John L. Wilkins, Jr., holding the river front and Lt. Col. Bernard G. Teeter's 1st Battalion holding the hill line that stretched from the Nam River to Sibidang-san and the Chinju-Masan highway.
In the low ground between these two battalions at the river ferry crossing site, Colonel Fisher had placed about 300 ROK police. He expected them to hold there long enough in case of a major attack to serve as a warning device. Guns from the flanking hills there could cover the low ground with fire. Back of Kŏmam-ni he held the 3d Battalion ready for use in counterattack to stop an enemy penetration should it occur.
Unexpectedly, the ROK police companies near the ferry scattered at the first enemy fire. Half an hour after midnight enemy troops streamed through this hole in the line, some turning left to take G Company in flank and rear, and others turning right to attack C Company, which was on a spur of ground west of the Kŏmam-ni road. The I&R Platoon and elements of C and D Companies formed a defense line along the dike at the north edge of Kŏmam-ni