Thousands of protesters have converged on the parliament building in Armenia's capital to push for the resignation of the country's prime minister over his handling of the conflict with Azerbaijan over Nagorno-Karabakh.
Nikol Pashinyan's opponents are angry at a peace deal that ended six weeks of fighting over the separatist region but allowed Azerbaijan to take over wide areas that have been controlled by Armenian forces for more than 25 years.
Armenia's opposition parties gave Pashinyan an ultimatum to resign by Tuesday but he has ignored the demand, defending the peace deal as a bitter but necessary move that prevented Azerbaijan from overrunning the entire Nagorno-Karabakh region.
About 15,000 protesters marched through downtown Yerevan to the parliament building, chanting "Nikol go away!".
The opposition has been pushing for Pashinyan's resignation since the Russia-brokered peace deal took effect on November 10.
Protests have grown over the past days, with demonstrators blocking traffic in various sections of the capital and also rallying in other cities.
The Armenian Apostolic Church and all three of the country's former presidents have joined the demand for Pashinyan to step down.
Undeterred, the prime minister told MPs in parliament on Wednesday that the country needs consolidation in the current difficult period.
"Voices of different groups mustn't be mistaken for the people's voice," he said.
Speaking outside parliament on Wednesday, Artur Vanetsyan, the former head of the National Security Service who leads the Homeland opposition party, argued that Pashinyan should step down to allow opposition forces to "normalise the situation" in the country.
"Each day he stays on the job raises a new threat to the nation," Vanetsyan said.
Nagorno-Karabakh lies within Azerbaijan but has been under the control of ethnic Armenian forces backed by Armenia since a separatist war there ended in 1994.
That war left Nagorno-Karabakh itself and substantial surrounding territory in Armenian hands.
In 44 days of fighting that began in late September and left more than 5600 people killed on both sides, the Azerbaijani army forged deep into Nagorno-Karabakh, forcing Armenia to accept the peace deal which lets Azerbaijan reclaim much of the separatist region along with surrounding areas.
Azerbaijanis have celebrated it as a major victory and the country is set to hold a massive military parade on Thursday - to be attended by visiting Turkish President Recep Tayyip Erdogan.
Australian Associated Press