HONG KONG — Hong Kong police and protesters faced off early Monday as authorities began trying to clear the streets of a few hundred who remained near the city government headquarters after massive demonstrations that stretched deep into the night before.

The police asked for cooperation in clearing the road. Protesters responded with chants, some kneeling in front of the officers. The move came after activists rejected an apology from the city’s top leader for her handling of legislation that has stoked fears of expanding control from Beijing in this former British colony.

Nearly 2 million of the city’s 7 million people turned out on Sunday, according to estimates by protest organizers. Police said 338,000 were counted on the designated protest route in the “peak period” of the march. A week earlier as many as 1 million people demonstrated to voice their concern over Hong Kong’s relations with mainland China in one of the toughest tests of the territory’s special status since Beijing took control in a 1997 handover.

After daybreak Monday in Hong Kong, police announced that they wanted to clear the streets. Soon after, police lined up several officers deep and faced off against several hundred demonstrators on a street in central Hong Kong. The police asked for cooperation in clearing the road.

Crowds had gathered well after dark outside the police headquarters and Chief Executive Carrie Lam’s office. On Saturday, Lam suspended her effort to force passage of the bill, which would allow some suspects to be sent for trial in mainland China.

The move did not appease Hong Kong residents who see the legislation as one of many steps chipping away at Hong Kong’s freedoms and legal autonomy. Opponents worry the law could be used to send criminal suspects to China to potentially face vague political charges, possible torture and unfair trials.

Protesters are also angered over the forceful tactics by police in quelling unrest at a demonstration on Wednesday.

Periodically, the shouts of the protesters standing shoulder-to-shoulder in front of the police headquarters would crescendo into a roar that reverberated through the narrow concrete canyons of the red-light district of Wanchai.

Smaller crowds stood chanting outside Lam’s office building.

In a statement issued late Sunday, Lam noted the demonstrations and said the government “understands that these views have been made out of love and care for Hong Kong.”

“The chief executive apologizes to the people of Hong Kong for this and pledges to adopt a most sincere and humble attitude to accept criticisms and make improvements in serving the public,” it said.

Not enough, said the pro-democracy activists.

“This is a total insult to and fooling the people who took to the street!” the Civil Human Rights Front said in a statement.

The marchers want Lam to scrap the extradition bill and to resign.