
Members of parliament from Cambodia, Indonesia, the Philippines and Thailand signed a declaration forming the caucus.
They were Kraisak Choonhavan and Buranaj Smutharaks from Thailand, Yim Sovann from Cambodia, Djoko Susilo from Indonesia and Francis Pangilinan and Teodoro Casino from the Philippines.
"We believe that the dream of a true Asean community and the formation of an Asean Human Rights Body must recognise free expression, press freedom and people's access to information as essential to human rights," they said in the declaration.
"We also urge our national and regional leaders to uphold the rights of the people of Asean, in particular their rights to inquire, express and participate on matters that affect their lives and societies."