Supporters of former President Kenneth Kaunda demonstrated today outside the prison where he is incarcerated, while lawyers tried to force the government to release or charge him.
About 300 supporters, who arrived at the Kamwala holding prison by foot, bus and truck, chanted political songs to protest his arrest Thursday.
Paramilitary police, apparently expecting demonstrations by Kaunda supporters, patrolled most of the capital's main intersections.
Kaunda's detention came four days after he returned to the southern African country from a lengthy lecture tour.
He was away in October when soldiers seized control of the state radio station and broadcast that they had overthrown President Frederick Chiluba. Loyal troops quickly crushed the rebellion.
Kaunda, 73, was served with a 28-day detention order Thursday under a state of emergency declared after the Oct. 28 failed coup. The order gave no reasons for his arrest.
Chiluba ousted Kaunda from 27 years in power in the nation's first multiparty election in 1991.