A growing number of Hong Kong residents have stood up and taken action, expressing their opposition against violence, as the city saw a dark weekend tainted by escalating and extensive violence, in terms of intensity by radical protesters against police in recent clashes. 

Michelle Au Yeung, a young woman, organized a flash mob campaign to clean up the mess left by protesters in the streets since July. 

On August 24, Au Yeung and a group of young people voluntarily removed slogans with insulting language against the police painted on the walls outside Mong Kok Police Station. The group, later on, bought gifts for officers working at the police station to show their support.

The event aimed to call for action to restore peace and order to the city, Michelle said. 

"Since June, we have seen many protesters who did violent acts, leaving the streets dirty. So my friends and I launched a number of activities to clean up the streets, she said. 

"It really breaks our heart to see our policemen getting hurt and insulted by them (violent protesters). One slogan that really crossed the line is 'Black Police.' The police protect us. The word 'Black Police' is really insulting. So we shouldn't use this word, either by speaking of it or spraying it on the wall," Michelle stressed. "It is unacceptable."

Born and raised in Hong Kong, Michelle started doing volunteer work at the age of 10. In her free time, she likes to teach children from ethnic minority backgrounds and low-income families to dance. 

"We hope our flash mobs can attract more and more young people to join, together we can repair this polarized community, and spread the love to stop the hatred and violence," Michelle said. 

On Sunday, radical protesters set ablaze public property, vandalized government buildings and paralyzed traffic.

"We were taught, as little kids, to respect others and respect the rule of law. They (radical protesters) were mobilized and instigated. I really wish they could stop what they are doing and think rationally about whether they are right or wrong," she said.

"We have had enough."