Michael Gann, 55, allegedly constructed seven improvised explosive devices or IEDs and placed them around Manhattan, according to police.

The DOJ claimed the suspect, Michael Gann, constructed and hid at least seven devices around the city, including at least five that were stored on the rooftops of residential buildings and one that was thrown onto subway tracks.

A New York City man accused of making explosive devices and throwing at least one of them onto subway tracks is facing federal charges.