The Tiananmen Square protests, commonly known in mainland China as the June Fourth Incident, were student-led demonstrations held in Tiananmen Square in Beijing during 1989. The popular national movement inspired by the Beijing protests is sometimes called the '89 Democracy Movement. The protests started on 15 April and were forcibly suppressed on 4 June when the government declared martial law and sent the military to occupy central parts of Beijing. In what became known as the Tiananmen Square Massacre, troops with assault rifles and tanks fired at the demonstrators and those trying to block the military's advance into Tiananmen Square. Estimates of the death toll vary from several hundreds to several thousands, with thousands more wounded.