The New York Stock Exchange has unexpectedly shut down trading in all of its listed stocks late Wednesday morning, TheStreetReporters.com has gathered.

The New York Times reports that the exchange did not immediately give an explanation for what caused the shutdown.

However, in an alert on its website it wrote: “Additional information will follow as soon as possible.”

The New York Stock Exchange, which is now owned by Intercontinental Exchange, has been hit, like other exchanges, by technical difficulties in the past, but the scale of the problem on Wednesday has little precedent.

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