President Barack Obama delivers remarks on the explosions that occurred in Boston, in the James S. Brady Press Briefing Room of the White House, April 16, 2013. (Official White House Photo by Pete Souza)

Following a briefing from FBI Director Mueller, Attorney General Holder, Secretary Napolitano, and homeland security advisor Lisa Monaco, President Obama went to the Brady Press Briefing Room to update Americans on developments in Boston, following two explosions at the finish line of the Boston Marathon on Monday afternoon.

"We continue to mobilize and deploy all appropriate law enforcement resources to protect our citizens, and to investigate and to respond to this attack," the President said in a televised address. "Obviously our first thoughts this morning are with the victims, their families, and the city of Boston. We know that two explosions gravely wounded dozens of Americans, and took the lives of others, including a 8-year-old boy.

"This was a heinous and cowardly act. And given what we now know about what took place, the FBI is investigating it as an act of terrorism. Any time bombs are used to target innocent civilians it is an act of terror. What we don’t yet know, however, is who carried out this attack, or why; whether it was planned and executed by a terrorist organization, foreign or domestic, or was the act of a malevolent individual."

The President assured the American people that while it will take time to determine what happened, "we will find whoever harmed our citizens. And we will bring them to justice."

In addition to highlighting the tremendous acts of heroism by the men and women of the FBI, the Boston Police Department, and other agencies and first responders yesterday, the President praised the kindness, generosity and love that was on display throughout the city of Boston in the aftermath of the bombings. "if you want to know who we are, what America is, how we respond to evil -- that’s it. Selflessly. Compassionately. Unafraid."

You can watch the President's complete statement below or on YouTube:

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