BEIJING, DPA – China’s Communist Party is marking its 100th birthday with a celebration in Beijing’s Tiananmen Square and an address by President Xi Jinping, the party leader who has steadily expanded state control over the country’s 1.4 billion people.

Details have not been released, however a military parade similar to what took place two years ago on the 70th anniversary of the founding of the People’s Republic of China was not planned.

The centenary comes with strict security measures.

For days, police have been checking all cars and passengers entering the capital of 21 million people, leading to long traffic jams in some places.

Neighbourhood committees have also mobilised thousands of volunteers to keep order on the streets during the showcase of the Communist Party’s power and influence.

Troops are guarding underground stations.

While celebrations are under way in Beijing, Hong Kong on Thursday will mark 24 years since it was transferred from British to Chinese rule.

It will also be a year since a China-imposed national security law on Hong Kong went into effect, a move that sparked a global outcry.

China said the law was needed to counter threats but it is also used to quash voices of dissent in the semi-autonomous territory that had previously enjoyed a degree of political autonomy.

Hong Kong authorities have banned demonstrations to observe the July 1, 1997 handover.

Major protest marches have in previous years been held in Hong Kong against the policies of Beijing officials.