More than 150 supporters of Fidel Castro interrupted a silent protest Sunday in Havana by wives of political prisoners arrested in the 2003 crackdown on dissidents.

Known as the Ladies in White, the dissidents' wives left church Sunday walking silently in single file and carrying flowers. They were stopped by the Castro supporters, who denounced them as counter-revolutionaries.

The activist group has staged protests demanding the release of their husbands and other opponents of Fidel Castro's government.

Their husbands were among 75 people arrested in 2003 on charges of working with U.S. diplomats to undermine Cuba's government.

Washington and the activists have denied the charges.

Some information provided by AFP and AP.