Security forces fired teargas canisters to disperse dozens of protesters outside the home of Sheikh Isa Qassim in the village of Diraz west of the capital, activists said.
Protesters have been staging a sit-in at Diraz since authorities revoked Qassim's citizenship in June, after accusing him of sowing sectarian divisions in the country.
Images posted online today showed protesters including women in traditional black robes brandishing posters of Qassim, whose trial on charges of illegal fundraising and money laundering opened in July.
The interior ministry said it made several arrests today, but did not refer to the clashes.
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