An Army veteran was arrested Monday after an explosion and fire occurred outside a federal building in Lower Manhattan [1].

The incident targeted a facility housing the Immigration and Customs Enforcement (ICE) office, signaling a violent escalation in anti-ICE protests. Authorities are investigating the suspect's motives and the exact nature of the materials used to spark the blaze.

The explosion was heard at approximately 8:30 a.m. [2] on Monday, July 20, 2026. The blast took place outside 26 Federal Plaza, a building that houses an ICE office [3]. One suspect was taken into custody following the event [4].

Reports regarding the device vary. Some sources said the suspect ignited fireworks and poured flammable liquid to start the fire [5]. Other reports described the event as the detonation of an incendiary device [6].

Investigators said the suspect carried anti-ICE material during the incident [7]. The man, identified by multiple sources as a veteran of the U.S. Army, was apprehended shortly after the explosion [1].

Federal officials and the FBI are processing the scene in Lower Manhattan. The building remains a focal point for federal operations in New York City, and security has been tightened following the morning's events.

An Army veteran was arrested Monday after an explosion and fire occurred outside a federal building in Lower Manhattan.

This incident highlights the volatile intersection of veteran status and political activism, specifically regarding U.S. immigration enforcement. By targeting a high-profile federal hub like 26 Federal Plaza, the act moves beyond symbolic protest into potential domestic terrorism or felony arson, likely prompting a broader federal review of security protocols at ICE-occupied facilities.