HONG KONG (AP) — China warned of "chaos" and threw its weight behind Hong Kong's embattled leader in his face-off with pro-democracy protesters who have threatened to occupy government offices unless he steps down by the end of Thursday. Student leaders who have played a key role in organizing the protests initially wanted to meet with Leung, but after Sunday's clashes with police, they have stepped up calls for his resignation and asked that the central government in Beijing heed their demands for genuine democratic reforms. Since Monday, the protests have been peaceful. An editorial solemnly read Wednesday evening on state TV said all Hong Kong residents should support authorities in their efforts to "deploy police enforcement decisively" and "restore the social order in Hong Kong as soon as possible." Wang said that the protests are "China's internal affairs" and that no country would allow "illegal acts" against public order.