Online Encyclopedia Wikipedia Blocked in China Ahead of Tiananmen Anniversary

A Chinese policeman patrols as tourists gather in Tiananmen Square in Beijing on June 4, 2016, on the 27th anniversary of the June 4, 1989 crackdown on pro-democracy protests. Fred Dufour/AFP/Getty Images

SHANGHAI—Authorities in China have blocked Wikipedia, the online encyclopedia’s owner said on May 15.

“In April, the Wikimedia Foundation determined that Wikipedia was no longer accessible in China,” Samantha Lien, spokeswoman for the Wikimedia Foundation, which owns Wikipedia, said in an email.