"August 9 marks six years since the 2020 forced suppression of Belarusian protesters who spoke up for democracy, political freedoms, and human rights," the ministry said in a statement.
The ministry said Poland supports Belarusian civil society and called for dialogue between the Belarusian authorities and their citizens, respect for human rights and the release and rehabilitation of all prisoners of conscience.
"Open dialogue with citizens, full respect for their rights, as well as the release and rehabilitation of all prisoners of conscience are standards of a democratic state," the ministry said.
Poland also said it "advocates for good-neighbourly relations with a sovereign, democratic Republic of Belarus and the free Belarusian people."
The anniversary marks the presidential election held on August 9, 2020, which was officially won by longtime Belarusian leader Alexander Lukashenko. The opposition rejected the results as fraudulent, triggering mass protests across the country.
Lukashenko was officially credited with 80.1 percent of the vote, while opposition candidate Sviatlana Tsikhanouskaya was reported to have received 10.1 percent.
Tsikhanouskaya, who emerged as the main challenger to Lukashenko, was forced to leave Belarus after the election.
The protests, which demanded a fair election, were the largest mass demonstrations in Belarus' history.
Authorities responded with a sweeping crackdown in which thousands of people were detained, while many others fled the country.
Political prisoners remain in Belarusian jails.
(gs)
Source: IAR, PAP