BREAKING NEWS: Boston Marathon Arrest

<p>Bombing on Monday</p>

Bombing on Monday

ABC News -- An arrest is imminent or may have already taken place in the Boston bombings. Surveillance video taken by cameras at Lord & Taylor on Boylston Street helped identify a suspect placing a bomb.

The Boston Police Dept and FBI will be holding press conference at 2pm today.

We'll keep you posted as we get more information.