Heavy police activity in the 400 block of Frelinghuysen Avenue has police and SWAT on the scene at this time.
The incident unfolded at around 1 p.m. when cops were called to the scene for reports of an armed man at that location.
According to preliminary reports, the new owners of the property were at the building when they encountered the armed homeless man. The owners immediately ran onto the roof for safety and to contact police.
The unidentified man was taken into custody without incident.
An search of the building led police to the recovery of a BB gun.
UPDATE 2:33 p.m. Two “civilians” have been brought down from the roof a the building. Still no word of the suspect at this time.