Screenshot: CNN

The CNN offices in at the Time Warner Center in New York City have been evacuated due to a bomb threat. The offices and studios were vacated after an alarm bell rang at 10:30 pm EST, the news channel reports. Don Lemon’s CNN Tonight has been taken off air, and the network has switched to taped programs.

From CNN:

Numerous police and fire department trucks have blocked all vehicle and pedestrian traffic on West 58th Street between 8th and 9th Avenue due to a police investigation at Columbus Circle, where the Time Warner Center is located, the New York Police Department tweeted.

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This October, CNN’s offices and studios were evacuated when Ceasar Sayoc Jr. sent a suspicious package that turned out to be a pipe bomb to the studios.

Update, 11:45 pm: Don Lemon, who was on air at the time the threat was made, is reporting from the street outside. He says a call was made to 911 from “the South of the United States” saying there were “up to five bombs” in the CNN building. The NYPD’s bomb squad has arrived.

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Update, 11:58 am: According to reporter Brian Steinberg, CNN reports that they have been given the all clear.

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This story is developing and will be updated.