Police and supporters of Nicaraguan President Daniel Ortega clashed in Managua on Sunday with demonstrators calling for the release of people imprisoned during recent protests, leaving at least one person dead, authorities said.

Hundreds of protesters carrying Nicaragua's blue and white flag massed in the eastern part of the capital in the morning after squads of police prevented the demonstrators from reaching the city center.

"We are marching for the freedom of our children, who are not criminals. They are fighting to have a better country," said Mercedes Davila, the mother of student leader Edwin Carcache, who she said had been jailed on charges of terrorism.