Blaming human error, Microsoft restored previously blocked footage of the famous challenge of an unknown man who defied Chinese tanks during the Tiananmen Square uprising in 1989.
Users who tried to find the photo on Friday were told that there were no search results available for “Tank Man. Users in the United States, Germany, Singapore, France and of Switzerland were affected and the images have since been restored.
The action took place on the 32nd anniversary of the Tiananmen Square massacre, which saw students and pro-democracy protesters arrested and shot.
“This is due to accidental human error and we are actively working to resolve this issue,” Microsoft said in a statement Friday.
Bing is the second-largest search engine, but only accounts for 2% of the global market, according to Statcounter. Google holds 92% of the market.
Images and references from Tianamen Square are regularly censored in Chinese media. Bing and other companies allow censored versions of their products in China.