Pro-democracy lawmakers dragged out of legislature by security guards after heckling city's leader Carrie Lam for second day running.
Carrie Lam's inability to deliver her policy address inside the Legislative Council marked a slap in the face for the embattled chief executive grappling with anti-government protests now in their fifth month.
The Hong Kong Human Rights and Democracy Act, a measure passed by the House, would require the US secretary of state to certify each year that Hong Kong retained its autonomy in order to receive special treatment as a major financial center.
Hong Kong's leader Carrie Lam says seeking Chinese intervention was provided for under city's constitution but that she cannot reveal under what circumstances she will do so.
The warning comes as the international financial hub remained partly paralysed from three days of protests in which the city's rail network and business outlets seen as pro-China were vandalised.
Hong Kong has been battered by 18 consecutive weekends of unrest, with widespread public anger over Chinese rule and the police response to protests.
The ban, imposed under emergency powers not used in more than half a century, was aimed at quelling nearly four months of unrest but instead triggered mass protests and vows of defiance, with a 14-year-old boy reportedly shot and wounded.
Malaysian PM Mahathir Mohamad called for Carrie Lam to quit after she invoked colonial-era emergency powers to ban protesters from wearing face masks. Her move to quell months of unrest sparked immediate rallies and vows to defy the new law.
Carrie Lam said a ban on face masks would take effect on Saturday under the emergency laws that allow authorities to "make any regulations whatsoever" in whatever they deem to be in the public interest.
More than 100 people were injured during Tuesday's turmoil, the hospital authority said, as angry demonstrators took to the streets across the territory and police fired tear gas and water cannons to try to disperse them.
Soldiers, tanks and high-tech weapons file past Tiananmen Square to celebrate China's journey to become the world's second-largest economy. Meanwhile, police in restive Hong Kong shoot and wound a protester in fresh demonstrations against Beijing.
The reverberations of the British Empire cannot be ignored as the two territories remain caught between the iron fists of New Delhi and Beijing.
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