Boston Marathon Explosion: Boston University Now on High Alert

"Boston University Police Department working with Boston Police Department and are requesting all people to stay clear of Kenmore Sq. and surrounding areas. Please return to your residence and remain indoors. Report any suspicious articles or activity to police."

This is according to the BU.edu website. The Boston Globe is now reporting that all off duty emergency responders have been called in.  

The White House has now closed off Pennsylvania Avenue to pedestrians, President Obama has also been notified of the explosions in Boston.