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“Defend the Diaoyu Islands to the death,” one banner said. Another said, “Even if China is covered with graves, we must kill all Japanese.”
Another photograph showed a handwritten sign taped to the entrance of Suning, a popular electronics store, telling customers it was no longer selling Japanese products.
Some protests appear to have turned violent. According to several postings, demonstrators on Sunday attacked sushi restaurants or other businesses perceived to have a Japanese connection. Several photographs said to be from Shenzhen, across the border from Hong Kong, showed what appeared to be damaged or overturned cars — most of them Japanese models — as well as several police vehicles.
The demonstrations appeared to be sanctioned and chaperoned by the police, who generally prohibit public protests unless they suit the needs of the Communist Party.