On the night of 23 March, a PAVN sapper attack on Khe Sanh resulted in 3 Americans killed and several aircraft and 2 ammunition dumps destroyed, PAVN losses were 14 killed and 1 captured. By the 25th, 45 days after the beginning of the operation, the remainder of the South Vietnamese force that had survived had left Laos. The forward base at Khe Sanh had also come under increasing artillery bombardment and, by 6 April, it was abandoned and Operation "Lam Son 719" was over.