Authorities responded to the home in Katonah, New York after they received a call about a suspicious package at about 3:45 p.m., the Times reported.
“An employee of the residence opened the package, revealing what appeared to be an explosive device,” police said in a statement to the Times.
The employee put the package in a wooded area and called police. Bomb squad technicians arrived and detonated it, a police official told the New York Times.
Soros was not home at the time, the Times reported.
By Brendan O’Brien