Images posted immediately after the incident on Weibo , China 's version of Twitter , which showed black smoke and a vehicle engulfed in flames , were largely deleted . NEW : 5 people detained in connection with deadly crash , police say . the Forbidden City censors images of Xinhua that plowed into Tiananmen Square , killing Five . Uyghur diaspora group says it 's too early to assign blame .
NEW : 5 people detained in connection with deadly crash , police say . the Forbidden City censors images of Xinhua that plowed into Tiananmen Square , killing Five . Uyghur diaspora group says it 's too early to assign blame .