The protesters demanded Turkey to recognize the 1915 Armenian genocide.
Beginning in 1915, an estimated 1.5 million Armenians were massacred by the Ottoman Turks, and the genocide is still denied by modern-day Turkey.
The protesters in Rabieh also burned Turkish flags and shouted slogans denouncing Turkey's support for Azerbaijan in the current conflict over the Nagorno-Karabakh region.
Nagorno-Karabakh is a mountainous enclave within Azerbaijan's borders, populated mainly by ethnic Armenians who reject Azerbaijan's rule. With support from Armenia they fought a war in the early 1990s to establish de facto control over the territory.
The recent fighting was the most intense since a 1994 ceasefire that stopped the conflict but did not resolve the underlying dispute.
Azerbaijan says the only outcome of negotiations it will accept is the restoration of its control over Nagorno-Karabakh and surrounding districts that are held by the separatists, while the Armenians say they will never agree to Nagorno-Karabakh being under Baku's control.