Cleanup of a sinkhole in northern Assumption Parish has been indefinitely halted after another section of land collapsed, pulling down at least five trees along the southwest side of the four-acre depression.Parish officials said a portion of the sinkhole edge, about 50-foot-long went under Tuesday near pipeline corridors that run along the western edge of the slurry hole.The sinkhole, which was found Aug. 3, is on Texas Brine Co. of Houston property south of La. 70 South between Grand Bayou and Bayou Corne. Parish officials evacuated 150 homes the day the sinkhole emerged. The evacuation remains in place.