TSX sinks over 2 percent to 2015 low

A man walks past an old Toronto Stock Exchange (TSX) sign in Toronto, June 23, 2014. REUTERS/Mark Blinch

TORONTO (Reuters) - Canada's main stock index tumbled more than 2 percent on Thursday in a broad-based rout that took energy stocks to their lowest level since 2004. The Toronto Stock Exchange's S&P/TSX composite index <.GSPTSE> fell 299.63 points, or 2.13 percent, to 13,737. The materials sector was the lone gainer, while health care sank nearly 5 percent. (Reporting by Solarina Ho; Editing by Dan Grebler)