NPR reports that Microsoft's search engine, Bing, appears to be blocked in China. Until Wednesday, Bing was one of the few foreign search engines that still worked inside the country, but NPR's Rob Schmitz confirmed that the site is no longer accessible, while noting that "China's internet regulator has yet to comment on the issue." The report notes that Facebook, Google, and Twitter are already blocked in China, and that the Chinese government even hacks into some Twitter accounts that try to circumvent the ban. Bing had been allowed to operate in the country because it censored search results, Schmitz reports. Microsoft is also part of the Internet Society of China, "a government-linked body whose members refrain from establishing links to websites that contain information deemed harmful by China's Communist Party," Schmitz says. The Financial Times cites "two sources familiar with the government's order," who confirmed that China had blocked the search engine.