South Bridge Road, stretching all the way from the Elgin Bridge to Tanjong Pagar, is Chinatown's backbone. During the Japanese occupation roadblocks were set up at the point where South Bridge meets Cross Street, and Singaporeans were vetted at an interrogation post for signs of anti-Japanese feeling in the infamous Sook Ching campaign (see "The Japanese invasion and occupation"). Those whose answers failed to satisfy the guards and their hooded local informants either ended up as POWs or were never seen again. Today, South Bridge Road is fast becoming antiques-central, as more and more of the numerous dingy shops that line it are spruced up and turned into Asian arts curiosity shops.