Police have given the all-clear after a phoned in bomb threat forced the evacuation at the offices of the USA cable channel, CNN, in NY.
The "all clear" was given by police shortly before midnight after several dozen police officers searched the building floor by floor.
While none of the devices had actually detonated, the Federal Bureau of Investigation said that they were not dummies. "Bomb threat. We're running taped programming".
Stelter also tweeted that 58th Street outside the company's Columbus Circle headquarters has been closed down by police to traffic.
The bomb threat was called in while CNN's Don Lemon was in mid-broadcast. We grabbed what we could and got out of the building and now, we are standing outside of the building, ' Lemon said on CNN.
The caller who phoned in the threat claimed there were five bombs inside the building, New York's WNBC-TV reported, citing a police source.
A bomb squad, police cars and emergency vehicles were rushed to the scene.
Police searched thoroughly the evacuated building and found nothing to substantiate the threat and later gave the all clear.
In October, Time Warner Center was evacuated after a package containing an explosive device addressed to ex-CIA Director John Brennan was discovered.
The bomb threat was made just 20 minutes after President Trump tweeted that fake news was "the enemy of the people" - the latest in many of his attacks on the media.