CANADA STOCKS-TSX slides at open as riskier assets shunned

TORONTO, Aug 18 (Reuters) - Canada's main stock index opened lower on Friday, as investors fled to safety amid global geopolitical uncertainties, with the heavily weighted financial stocks leading broad declines.

The Toronto Stock Exchange's S&P/TSX composite index fell 69.62 points, or 0.46 percent, to 14,964.02.

Materials was the only group that advanced out of the index's 10 main sectors, as gold mining stocks benefited from higher safe-haven gold prices. (Reporting by Solarina Ho; Editing by Chizu Nomiyama)