Authorities are continuing to investigate suspicious packages containing homemade bomb devices targeting high-profile Democrats and liberals, as well as the CNN news network. Investigators say the devices may have originated in southern Florida and were sent through the U.S. Postal Service. The 10 packages being examined had a return address for Florida Rep. Debbie Wasserman Schultz.

Three packages were intercepted Thursday, two headed for former Vice President Joe Biden in Delaware and a third to actor Robert De Niro in Manhattan. Other targets of the packages are billionaire philanthropist George Soros, the Obamas, the Clintons, Congressmember Maxine Waters, former U.S. Attorney General Eric Holder and former CIA Director John Brennan, whose package was delivered to the offices of CNN. This is FBI Assistant Director William Sweeney.

William Sweeney: “What I can say is that at various times over the last few days, 10 suspicious packages were located at multiple locations in New York, Maryland, Florida, Delaware and Los Angeles. Law enforcement responded, and each package was collected by experts, and examinations are now underway at the FBI lab in Quantico. As to the devices located in New York which contained a powder, the initial analysis indicates that the powder in those particular envelopes did not present a biological threat. Other analysis is ongoing.”