Suspected explosive devices were sent to former US President Barack Obama and ex-Secretary of State Hillary Clinton, the US Secret Service has said.
It comes two days after a bomb was found at the home of liberal philanthropist and financier George Soros in the suburbs of New York City.
The devices were discovered by technicians who screen mail sent to the former US officials.
The Time Warner building in New York was also evacuated due to a package.
According to a statement from the US Secret Service, the first package recovered was addressed to Mrs. Clinton late on October 23.
“Early this morning, October 24, 2018, a second package addressed to the residence of Former President Barack Obama was intercepted by Secret Service personnel in Washington, DC,” the statement adds.
According to BBC News, the FBI in New York said they were aware of the suspected packages, and are aiding in the investigation.