Speaker John Boehner (R-Ohio) led the House in a moment of silence Monday night in honor of the people killed or injured at the Boston Marathon bombing.
"The House will now observe a moment of silence in memory of the victims of today's attack in Boston," Boehner said before a full House that was in the midst of a series of votes.
Rep. Michael Capuano (D-Mass.) spoke briefly before the moment of silence to say that today's bombings likely affected several nations around the world.
Capuano hesitated to call the bombing a terrorist attack, but said anyone who would do such a thing is "evil."
"I hesitate to call what the event was, but whatever it was, it was a terrible tragedy," he said. "Clearly anyone to act in such a manner is clearly an evil person and deserves to be called as such."
Moments earlier, the Senate held its own moment of silence, led by Senate Majority Leader Harry Reid (D-Nev.).
"I, like every member of the Senate, am shocked and saddened by the news of the bombs at the Boston Marathon," Reid said on the Senate floor. "I commend the first responders and observers who rushed to those who were hurt."
Boehner spoke to President Obama today about the bombing by phone. Obama addressed the nation earlier in the day and promised to find whoever was responsible for the attack.
"Make no mistake," Obama said. "We will get to the bottom of this. We will find out who did this."