The Florida man accused of sending packages containing explosive material to prominent Democrats and other opponents of President Donald Trump is due to make his first court appearance Monday.
An initial hearing is set in Florida federal court for Cesar Sayoc, 56, who faces five federal charges.
The hearing will come hours after a 14th package was intercepted, this one in Atlanta and addressed to CNN.
Another was delivered to the cable network's New York offices last week, causing an evacuation.
On Monday, bomb squads from the FBI and Atlanta police responded to a "suspicious package" at a post office in downtown Atlanta.
The FBI did not identify to whom the package was addressed, but CNN President Jeff Zucker announced that a suspicious package addressed to the cable television network was intercepted Monday at an Atlanta post office.
Authorities did not immediately say who might be responsible for sending the most recent package, but law enforcement officials have said they believe the packages were staggered and more could be discovered.
The network said that the "package looks similar in appearance to the wave of pipe bombs that were mailed last week to prominent Democrats around the country, including two that were addressed to CNN's New York bureau."
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