The CNN office in New York mysteriously evacuated on Wednesday while it was on live television.

Shortly after 10 a.m., Poppy Harlow and Jim Sciutto were forced to leave the Time Warner building while anchoring and sharing news of suspicious packages sent to the Clintons and Obamas.

Live in the air, what sounds like a fire alarm can be heard. Employees are seen leaving the building in the background. Then, Harlow interrupts a source to say they will need a break due to the fire alarm.

Later, Harlow and Sciutto called from the street to update the viewers about their status after going down six flights of stairs of the building. Sciutto tweeted that there was a "explosive device" Sent to the office. Harlow, while walking through Manhattan with the staff, said he believed that all of his CNN colleagues had been evacuated safely.

Sciutto said the package was made inside the building, but it was marked during a routine examination. He shared an image of a "containment container" in the direction of the office in a truck. At least one street outside the office was blocked for traffic.

The New York City Police Department is investigating the package. Investigations are also under way for other packages sent to the home of Hillary Clinton in Westchester County, New York, and to former President Obama in Washington.

Plus: The Secret Service intercepts suspicious packages sent to Clintons and Obamas

A US official reportedly told The Associated Press that investigators believe that the explosive sent to Clinton is linked to one found on Monday in Bedford, New York, home of liberal billionaire George Soros. The official was not authorized to speak publicly about the investigation and spoke on condition of anonymity.

The Secret Service said it has initiated a criminal investigation into the incidents.

Bart Jansen and Matt Spillane contributed to this report. Follow Ashley May on Twitter: @AshleyMayTweets

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