President Biden announced that at least 14 Americans have been killed amid the Israel-Hamas war since it began on Saturday morning.
"There are moments in this life, I mean this literally, when the pure, unadulterated evil is unleashed on this world," Biden said during a speech on Tuesday afternoon.
"The people of Israel live through one such moment this weekend," he added. "The bloody hands of the terrorist organization Hamas, a group who stated purpose for being is to kill Jews, which was an act of sheer evil."
Biden also confirmed that U.S. citizens are among the hostages taken captive by Hamas.
"We now know that American citizens are among those being held by Hamas," he said.
Hamas unleashed a surprise attack on Israel on Saturday morning, which coincided with the Jewish holiday of Simchat Torah. At least 1,600 have been killed, including more than 1,000 people in Israel.