Moscow City Court has upheld a lower-court decision to keep two members of the feminist punk group Pussy Riot in pretrial detention until at least April 24.
Nadezhda Tolokonnikova and Maria Alyokhina, members of the Pussy Riot group, were arrested last month after staging a noisy protest at Christ the Savior Cathedral near the Kremlin against the continued rule in Russia of Vladimir Putin.
They were charged with hooliganism and insulting religious believers.
Both women have launched a hunger strike to protest their arrest, and their supporters have staged a number of protest demonstrations in Moscow and other cities.
About 20 supporters of the women gathered near the court on March 14, and three of them were detained by police.
With ITAR-TASS and Interfax reporting