June 2, 2014 at 11:56 pm

Tiananmen security tight on eve of 25th anniversary

A Chinese man jokes as he has his picture taken with kids outside the Forbidden City at Tiananmen Square on June 2, 2014 in Beijing, China. Twenty-five years ago on June 4, 1989, Chinese troops cracked-down on pro-democracy protesters leaving scores dead and injured. (Kevin Frayer / Getty Images)

Beijingó Beijing has launched a security crackdown on the eve of the 25th anniversary of the crushing of pro-democracy protests centered on the capitalís Tiananmen Square.

Police manned checkpoints on Tuesday and officers along with paramilitary troops patrolled over pedestrian overpasses and streets surrounding the square in the city center.

The increased security comes on top of heightened restrictions on political activists, lawyers and other government critics. Dozens have been taken into detention, forced out of Beijing or confined to their homes in other parts of the country.

China allows no discussion of the events of June 3-4, 1989, when soldiers accompanied by tanks and armored personnel carriers fought their way into the heart of the city, killing hundreds of protesting citizens and onlookers.