Conflicting reports have said that there have been no arrests made regarding the Boston bombing suspect, but there is a heavy security at the federal courthouse. 

There is a heavy presence of Home Land Security at the Federal Courthouse in Boston. WCVB has posted this photo to there twitter account.

@wcvbkelleyt

Kelley Tuthill was on the scene and says that everyone was evacuated from the courthouse under a 'Code Red'. They had all media move to the opposite side of the street. She is getting unconfirmed reports of a 'bomb threat' in the courthouse.

Earlier reports indicate that there has been made significant progress in identifying a suspect, but no arrests have been made.