At least 30,000 Russians and other non-Estonians marched in the Baltic republic's capital of Tallinn, threatening a general strike if the Communist Party does not halt a surge of nationalist reform, journalists said.

Tuesday's protest was organized by Interfront, a group dominated by ethnic Russians that claims the 420,000 ethnic Russians in the republic are discriminated against by the ethnic Estonian majority.Estonia's parliament, using the greater autonomy granted local lawmakers under President Mikhail S. Gorbachev, voted Jan. 18 to require non-Estonians who work in jobs where they come into contact with the public to learn Estonian in four years or face dismissal.

Interfront wants Russian to be granted the status of an official state language in Estonia, on par with Estonian.