Lyudmila Alexeyeva, a Russian human rights activist and head of the Moscow Helsinki Group, said she will try to receive the authorities' permit for the next March of Dissent.

"We will try to coordinate future rallies [on Triumfalnaya Square in downtown Moscow] with authorities. But you see that now such rallies are suppressed," she told journalists.

An estimated 200 protesters turned out for an unauthorized March of Dissent rally in downtown Moscow on Saturday, and 75 were hauled away in police vehicles.

Police grabbed Russian opposition leader Boris Nemtsov, a former deputy prime minister, and Sergei Udaltsov, leader of the Leftist Front opposition group.

Moscow city authorities have regularly turned down requests from Russian opposition groups to stage March of Dissent rallies.

Nearly 200 opposition protesters were detained during a rally on May 31.

Opposition groups hold Marches of Dissent on the last day of each month with 31 days in defense of their right to freedom of assembly, as enshrined in Article 31 of the Russian Constitution.

MOSCOW, August 1 (RIA Novosti)