Two Jerusalem Municipality gardeners working in the park adjacent to the King David Hotel found a pipe bomb that measured 8 X 20 centimeters. They were unaware that the pipe was a bomb, deciding to open it with a wrench. After they opened it, white gunpowder poured out which they thought was salt. After a smoking break, the gardeners tossed their cigarette butts into the \"salt\" which then exploded. There were no injuries to the two Arab gardeners.