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Thousands of Kurds protested against Turkish plans to build a wall along the Syrian border, calling it a move to stop Kurdish communities strengthening cross-frontier ties as Syria places splinters from civil war.
The rally underscored the sectarian strains spilling over from Syria's war, which grew out of a 2011 uprising against President Bashar al-Assad and has fragmented into a patchwork of antagonistic ethnic and sectarian pockets that risk destabilizing neighboring Middle Eastern countries.
Riot police tolerated the protests, organized by Turkey's pro-Kurdish Peace and Democracy Party (BDP), for much of the day but fired tear gas to disperse groups of demonstrators as a sit-down protest began following the main speeches.
Crowds of mostly young men, many waving red, yellow and green Kurdish flags, gathered in the Turkish town of Nusaybin, separated from the Syrian town of Qamishli by a strip of no-man's land and barbed wire
