The country has not confirmed that it has actually blocked Google services, but censorship is the likely culprit as the 25th anniversary of the uprising nears.
The mobile geolocation service isn't sure whether block is permanent, or temporary because people were using it to mark the 21st anniversary of the massacre.
Reports say China is blocking popular information- and video-sharing sites in the days leading up to the anniversary of the prodemocracy protests and subsequent massacre.
The Chinese government tells broadcasters it might bar live television shots of Tiananmen Square during the Beijing Olympics this summer.
At some point before the 20th anniversary of the Tiananmen Square massacre, Google changed its method for censoring search results. It refuses to discuss the new method.
Google confirmed the government rapped its knuckles over auto-suggested salacious search terms, yet still won't confirm China ordered similar measures for Tiananmen.
The social network's Chinese website blocks objectionable content globally -- a policy the company says it is "strongly considering changing."
The new operating system is expected to launch initially on desktops in October, with support for mobile devices coming later.
Wielding your own leg like a gun is the latest hot thing for selfies -- started by Chinese artist and activist Ai Weiwei.
Chinese monitoring site GreatFire says Microsoft is filtering certain search results. Microsoft pins the blame on a system error.