The Group of Seven leading economies is calling on China to reconsider plans to impose a national security law in Hong Kong, according to a joint statement issued on Wednesday.
The national security legislation is aimed at curbing secessionist activities that Beijing says fuelled monthslong anti-government protests in the semi-autonomous Chinese territory.
In their statement, foreign ministers from the G-7 nations voiced "grave concern regarding China's decision to impose a national security law on Hong Kong," adding that it would breach the territory's Basic Law and Beijing's international commitments.
"It would jeopardise the system which has allowed Hong Kong to flourish and made it a success over many years," they said, adding that open debate, consultation with stakeholders, and respect for protected rights and freedoms in Hong Kong are essential.
The G-7 members are the United States, Canada, France, Germany, Italy, Japan and the United Kingdom.
"We are also extremely concerned that this action would curtail and threaten the fundamental rights and freedoms of all the population protected by the rule of law and the existence of an independent justice system," the foreign ministers said in their statement, which was also signed by the EU's top diplomat.
"We strongly urge the Government of China to re-consider this decision," the G-7 added.