Bahrain is taking court action to dissolve the main Shi’ite opposition party, Al Wefaq, in a fresh crackdown on the pro-democracy movement.
Another opposition group is also being targeted amid claims they breached the constitution and acted to harm social peace and national unity.
It follows the suspension of the tiny Gulf state’s main opposition newspaper. It was accused of falsifying reports about recent sectarian unrest.
Bahrain’s Sunni Muslim rulers are eager to avoid any repetition of demonstrations by the country’s disgruntled Shi’ite majority.
The protest movement says it has no loyalty to non-Arab Shi’ite power Iran but Bahrain accuses Tehran of instigating the popular anger.
Having called in troops from Sunni-led Gulf neighbours Saudi Arabia and the United Arab Emirates, Bahrain crushed the protests last month.
Their focal point, the symbolic Pearl Square statue, was destroyed.