A runner embraces another woman on the marathon route near Kenmore Square after two bombs exploded during the 117th Boston Marathon on April 15, 2013 in Boston, Massachusetts.
Around 3 p.m. on Monday, Boston was rocked by several explosions at the finish line of the 117th Boston Marathon.
Videos of the event quickly began to flow from reporters and eyewitnesses on scene. Here are several videos taken from YouTube of the incident. (WARNING: There are graphic images contained in the videos.)