Zapata had been pressing for the release of prisoners from the 2003 crackdown, and a few months after his death the government began freeing them under a deal brokered by the Roman Catholic Church. Many went into exile with their families.
After the last of them walked free in April 2011, Amnesty said it no longer recognized any prisoners of conscience in Cuban jails.
In the months since, rights watchers say, authorities changed tack and would hold dissidents for a few hours or a couple of days before releasing them without charge.
But on Friday, Amnesty expressed concern about the Nov. 30 detentions of Ivonne Malleza Galano and her husband, Ignacio Martinez Montejo, picked up while staging a peaceful anti-government protest in Havana, and of Isabel Haydee Alvarez, an onlooker who objected to their arrest. It said all three were told they were arrested for "public disorder" but have been held without charge.
"Amnesty International considers them to be prisoners of conscience, detained solely for exercising their right to freedom of expression and freedom of assembly," it said, "and is calling for their immediate and unconditional release."
Associated Press writers Andrea Rodriguez in Havana and Jorge Sainz in Madrid contributed to this report.
Peter Orsi on Twitter at www.twitter.com/Peter(underscore)Orsi
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