Ottoman-style protest to denounce U.S. genocide statement

Minor protests were also staged outside U.S. Consulate in Istanbul a day after Ankara said Turkey vowed to respond to Biden's declaration "in different forms and kinds and degrees" over coming months.

Biden broke on Saturday with decades of carefully calibrated White House comments over the 1915 killings, delighting Armenia and its diaspora but further straining ties between Washington and Ankara, both members of the NATO military alliance.

Turkey accepts that many Armenians living in the Ottoman Empire were killed in clashes with Ottoman forces in World War One, but denies the killings were systematically orchestrated and constitute genocide.

For decades, measures recognizing the Armenian genocide stalled in the U.S. Congress and most U.S. presidents have refrained from calling it that, held back by concerns about straining relations with Turkey.