Residents visit the Alley of Martyrs since early hours to...

BAKU, AZERBAIJAN - 2015/01/20: Residents visit the Alley of Martyrs since early hours to pay tribute to Azerbaijan`s valiant sons and daughters. A state-wide moment of silence was observed for the Black January victims. Ships, cars, and trains sounded sirens throughout the country to remember victims of the January 20, 1990 tragedy. In accordance with a relevant plan of action, commemorative events have been arranged in all cities and towns of the country, with the state flag lowered on all buildings. (Photo by Aziz Karimov/Pacific Press/LightRocket via Getty Images)