The police have escalated the crackdown on Bersih 2.0 by raiding its secretariat in a member-NGO's office in Section 4, Petaling Jaya.
Police officers arrived about 12.30pm, according to Maria Chin Abdullah, who heads the NGO Empower.
Bersih 2.0, a coalition of NGOs, has come under intense pressure to call off the July 9 rally in support of electoral reform.
Maria, who was in Parliament House at the time, said she was told the police had turned up without a warrant.
The 10-member police team, from the Selangor police contingent headquarters, was headed by one ASP Rosli.
They arrived in five unmarked cars that were heavily tinted and most were in plainclothes. A large police truck arrived later.