sentences:  On October 23, the destroyers began picking up signals from American submarines.Roughly west of Cape Bojeador, Luzon, the convoy was ordered to break up due to the sheer number and to sail at fastest possible speed for Takao (modern day Kaohsiung Taiwan) due to the American submarine threat.On October 24, 1944, "Arisan Maru", by then traveling alone, was hit by a torpedo from , at about 5 p.m. in the No.3 hold.