(Adds comment from exchange operator)
TORONTO, May 15 (Reuters) - Toronto Stock Exchange and TSX Venture Exchange data were not updating on Friday afternoon ALERT85ALERT86 due to an issue at the exchange, its operator said.
"Toronto Stock Exchange and TSX Venture Exchange are experiencing a technical problem with datafeeds," Carolyn Quick, spokeswoman at exchange operator TMX Group Inc (X.TO), said in an e-mailed statement.
"We continue to investigate and will provide further updates as they become available."
The S&P/TSX composite index .GSPTSE last traded down 90.93 points, or 0.92 percent, at 9,758.27, at around 2:54 p.m.
In December, both exchanges were shuttered for virtually the entire day after a system fault linked to data feeds shut both markets. (Reporting by Jennifer Kwan; Editing by Jeffrey Hodgson)