The implementation of the national security law for Hong Kong is a fundamental solution to stop violence and restore order in the region, the Foreign Ministry said on Tuesday, reiterating China's commitment to safeguard national sovereignty and Hong Kong's prosperity and stability.

A Foreign Ministry spokesperson made the remarks in an online statement after China's top legislative body on Tuesday unanimously passed the national security law for Hong Kong.

The Standing Committee of the National People's Congress also decided to add the law into Annex III of the HKSAR Basic Law. President Xi Jinping signed a presidential order to promulgate the law.

The implementation of the law will further complete Hong Kong's legal system, stabilize the city's social order and create a better business environment, which will benefit Hong Kong citizens and international investors, according to the statement.

The Chinese government stays committed to implement the "one country, two systems" principle, and firmly opposes external forces to meddle in Hong Kong affairs, the spokesperson said.

China's determination and commitment to safeguard the security of national sovereignty and maintain the prosperity and stability of Hong Kong will not be undermined by any force or circumstance, the spokesperson said.

Any attempt to use Hong Kong to damage China's sovereignty, security and development interests is bound to fail, the spokesperson added.