(ANSA-AP) - KIEV — Hundreds of Ukrainian right-wingers were rallying in Kiev on Tuesday to protest against government policies in the wake of a deadly stand-off between radical nationalists and police in the country's west.

The radical Right Sector group was one of the most militant factions in the massive protests in Ukraine's capital that prompted pro-Russia President Viktor Yanukovych to flee the country in February 2014. Since the war broke out in eastern Ukraine between government forces and pro-Russia separatists several months later, the Right Sector has fought on the government side.

However, Right Sector militants keep running into disputes with local Ukrainian authorities and Amnesty International has accused the group of holding civilians as prisoners and torturing them. The activists claim they are trying to clamp down on corruption and nepotism but Ukrainian authorities accuse Right Sector of using violence to reach its goals.

Speaking Tuesday at the national Right Sector congress, group leader Dmytro Yarosh called for a referendum to impeach President Petro Poroshenko and his government.

Yarosh also called for the recognition of volunteer battalions and their right to carry arms as well as introducing martial law, which he said, will help defeat the rebels in the east.

Right Sector supporters gathered on Tuesday evening on Kiev's main square to support Yarosh's motion. Most of them were civilians and appeared to be unarmed, although some young men wore camouflage.

The Right Sector leader garnered about 1 percent of the vote in the May 2014 presidential election. His radical anti-Russian stance prompted the Kremlin to dismiss the uprising in Kiev as a neo-Nazi coup. (ANSA-AP).