HONG KONG - Hundreds of Hong Kong protesters blocked train services during the early morning rush hour on Tuesday, causing commuter chaos in the latest anti-government campaign to roil the former British colony.

What started three months ago as rallies against an extradition bill that would have allowed people in Hong Kong to be sent to mainland China for trial, has now morphed into a wider backlash against the city's government and its political masters in Beijing.

Protests have occurred almost daily, sometimes with little notice, disrupting business, piling pressure on Hong Kong's beleaguered government and stretching the city's police force, which some have accused of using excessive force.

Activists blocked train doors, playing havoc with services and forcing hundreds of people to stream out of railway stations in search of alternative transport.

"We don't know how long we are going to stay here, we don't have a leader, as you can see this is a mass movement now," said Sharon, a 21-year-old masked protester who declined to give her full name. "It's not our intention to inconvenience people, but we have to make the authorities understand why we protest. We will continue with this as long as need."

Others chanted, "Liberate Hong Kong," and "Revolution of our Time".

By mid-morning commuters were crammed into stations across the city, waiting to board trains that were badly delayed, with no service on some lines.

Rail operator MTR Corp urged people to seek other forms of transport, while public broadcaster RTHK reported that Transport Secretary Frank Chan had called on protesters to stop targeting a rail network that provided transport to five million people daily.

Hong Kong, which returned to China in 1997, is embroiled in its worst political crisis for decades after two months of increasingly violent protests that have posed one of the gravest populist challenges to Communist Party rulers in Beijing.

China on Monday reiterated its support for Hong Kong's embattled leader, Carrie Lam, and its police and urged Hong Kong people to oppose violence.

The latest protest follows a demonstration at the Chinese-ruled city's international airport on Friday and violent protests at the weekend when activists clashed with police who fired rubber bullets, tear gas and sponge grenades - a crowd-control weapon. -Reuters