AlHijjah 20, 1432, Nov 16, 2011, SPA -- Four people were killed on Tuesday after a warehouse wall collapsed in east China's Shandong province, local authorities said Wednesday. The accident happened at about 3 p.m. Tuesday in the village of Xinan in Cangshan county, Xinhua quoted the Shandong Work Safety Inspection Bureau as saying. A disused warehouse was being remodeled when its south wall collapsed, burying the four victims. An investigation into the accident is underway.