According to a RIA correspondent reporting from the scene, the protesters, who are supporters of a candidate barred from running for parliament in an April 9 by-election, are demanding to see President Kurmanbek Bakiyev.
Election authorities in the Central Asian country earlier cancelled the registration of Ryspek Akmatbayev on the grounds that he had concealed a previous conviction and violated residence qualifications.
Akmatbayev was seeking to become a legislator following the killing of his brother, Tynychbek Akmatbayev, chairman of the parliament's law and order committee, during a prison riot when he was inspecting a penal colony last October.
On October 19, 2005 inmates at colony IK-31 started disturbances over prison conditions. On October 20, they attacked members of a visiting parliamentary commission, killing three, including Tynychbek Akmatbayev, and the penitentiary service's head, Ikmatulla Polotov.