Police detains dozens of opposition protesters in Armenia

Protesters surround Sargsyan's residency

Thousands of people continue to flood Armenia's capital Yerevan, protesting the former president's shift to the prime minister's seat after his two terms as President finished.

According to local news sources, police detained almost 20 protesters.

Opposition MP Nikol Pashinyan - the leader of the pro-Western Civil Contract opposition party - has called for "a peaceful velvet revolution" and urged his supporters to set up "revolutionary committees" across the country.

Sarksyan's appointment has drawn criticism from political opponents, who accuse him of engineering a power grab.

A constitutional amendment approved in 2015 has transferred governing powers from the presidency to the premier.

Sargisyan was president for a decade, and stepped down last week because of a term limit.

Protests began in Yerevan on Friday and have since spread to the country's second and third largest cities, Gyumri and Vanadzor. We all have the obligation to form a collective political agenda; to take state-building to a new and heightened level; to realize a united political system of authority-opposition; to build citizen's confidence in the state and in the future; and to ensure that participatory democracy is implemented in the country.

Several hundred protesters then marched through Yerevan's suburban districts, briefly blocking road traffic and chanting anti-government slogans. A day earlier, police used tear gas and stun grenades when protesters tried to break through police cordons.

He also held the office of prime minister from 2007 to 2008.