Update 11:50 a.m.
Woburn Patch editor Richard Hosford says Woburn Police cars and unmarked cars are still outside the building that houses Agiltron — the same building that houses Lazer Craze, where police activity was seen outside earlier this morning. An official with a "Police/HSI" jacket was seen outside. HSI refers to Homeland Security Investigations, part of ICE, U.S. Customs & Immigration Enforcement.
Update 11:24 a.m.
Latest reports say that U.S. immigration officials are on-scene at a company called Agiltron, on Presidential Way. Woburn Patch editor Richard Hosford is now on-scene and will be reporting more shortly.
Woburn Patch has received reports of police and FBI activity at 15 Presidential Way.
Readers have asked about helicopters in the area. Patch has learned that both WHDH7 and Fox 25 have news helicopters in the area.
Woburn Police would not comment on the situation at this time.
We will update this story with more information as it becomes available.