Guillermo Farinas shouted anti-government slogans from his rooftop.
Guillermo Farinas and about 15 associates were arrested on Friday afternoon.
The high-profile dissident was detained with 10 other political activists.
A top Cuban state security official for the first time visited hunger striker Guillermo Farinas in hospital and urged him to stop his nearly month-long protest, a spokesman for the dissident said.
A dissident journalist who has gone nine days without eating or drinking said on Friday that he is willing to give his life to call attention to the plight of Cuba`s political prisoners.
Day in Pics: 4th May
Showbiz World - May 4, 2015
62nd National Film Awards