- Summary- Wave of civil disobedience unprecedented under Xi Jinping- Protesters hold vigils in Beijing, Shanghai and other cities- Anger over Urumqi factory fire and COVID curbsSHANGHAI/BEIJING, Nov 27 (Reuters) - Crowds of demonstrators in Shanghai shouted and held up blank sheets of papers early on Sunday evening, as protests flared in China against heavy COVID-19 curbs following a deadly fire in the country's far west sparked widespread anger.One student who saw the Tsinghua protest described to Reuters feeling taken aback by the protest at one China's most elite universities, and Xi's alma mater.Thursday's fire that killed 10 people in a high-rise building in Urumqi, capital of the Xinjiang region, saw crowds there take to the street on Friday evening, chanting "End the lockdown!"Adding to a raft of weak data in recent days, China reported on Sunday that industrial firms saw overall profits fall further in the January-October period, with 22 of China's 41 major industrial sectors showing a decline.This weekend, Xinjiang Communist Party Secretary Ma Xingrui called for the region to step up security maintenance and curb the "illegal violent rejection of COVID-prevention measures"."