Several of the packages went through a US post office in Opa-locka, Florida, two law enforcement officials familiar with the investigation. [Thursday, September 16, 2006] Miami Dade County Police Department said they assist federal agents who were in the facility as part of the ongoing investigation.
"This help is a precautionary measure," tweeted the department. "We can not provide any additional information at this time due to the active nature of this federal investigation."
The news came on a day when three more packages containing potential bombs were discovered. A total of 10 devices were found, none of which exploded, including two packages that were addressed to the former Vice President Joe Biden.
These packages were removed late Thursday morning from Delaware's postal facilities, law enforcement officials said.
Earlier Thursday, a suspicious package was reported to the acting legend and Trump critic Robert De Niro in the Manhattan Building, where his production company is based.
The law enforcement authorities treat the bombs as a matter of internal terror.
Bombs Sent to the FBI Laboratory for a Closer Look
All ten packages went through the US Post, according to several law enforcement agencies familiar with the investigation.
The one delivered to the New York office of CNN was delivered by a courier, said one of the police officers.
George Soros, a billionaire philanthropist who supports the Democrats, also uses a courier who picks up his mail at a post office, goes through and delivers the filtered items to his home, the source said. It is possible that the private company commissioned to handle his mail was the one who delivered the parcel home.
Man Believes that some parcels were shipped through first-class mail, as another source familiar with the investigation said.
The bombs were taken to an FBI lab in Quantico, Virginia, officials said.
An officer familiar with the investigation said a suspect powder from a package was tested and initially not considered an anthrax or known agent. The source added that there will be more tests in the coming days.
A key question that authorities are puzzling is why none of the apparent bombs detonated, a source of law enforcement
The FBI called them "potentially destructive devices" – so either the bomber was good enough to make sure none of them exploded and they never wanted to explode, or they were poorly built.
The presence of alleged pyrotechnic powder is one reason why the authorities consider it potentially destructive, even though it appears they are being carried through the postal system without any explosion – where they have been jostled and moved.
External experts have pointed to the lack of a triggering mechanism, suggesting that they should never explode.
"Whoever does this merely tries to provoke fear or disturb something," said Ryan Morris, founder of Tripwire Operations Group, a company that offers law enforcement officers and military officials explosives training. He had examined pictures of the devices sent to Soros and CNN's New York offices.
"There are a variety of more sophisticated methods that would work if they really wanted," he added.
The devices contain very common components that make it harder to get clues from the signature of the bomb. But the components could still be clues – like the clock and the tape used.
The subject is unknown, but the recipients are all prominently targets of right-wing criticism and in many cases by Trump himself.
The authorities do not believe the reports of a picture of the ISIS flag on the device, the source suggests, suggesting that they do not believe that it is international terrorism. The image seems to be a fake ISIS flag, which is widely used on the Internet, an image that essentially parodies the ISIS flag, the source added.
Asked by a reporter if there could be more bombs To be discovered, New York Police Chief James O'Neil said it was unclear.
"But with the postal services that are here, we do our best to make sure that when it's out there, we quickly identify it," he said.
CNN's Brynn Gingras, Shimon Prokupecz, Josh Campbell, Ryan Nobles, and Julia Jones all contributed to the report.