TORONTO, Mar 16 (Reuters) - Toronto Stock Exchange S&P/TSX composite index .GSPTSE :
* Falls 1067.60 points, or 7.78 percent, to 12,648.73 at open.TORONTO, Mar 16 (Reuters) - Toronto Stock Exchange S&P/TSX composite index .GSPTSE :
* Unofficially closes down 1355.93 points, or 9.89 percent, at 12,360.40.