A 43-year-old [1] U.S. Army veteran was arrested Monday morning after an explosion occurred outside a federal building in Lower Manhattan [2].

The incident targeted 26 Federal Plaza [3], a high-profile government hub. The blast triggered a fire and a massive emergency response in the heart of New York City [4], raising immediate concerns about security at federal installations.

Authorities identified the suspect as a 43-year-old [1] former member of the U.S. Army. Officials said the man is described as an anti-government extremist [5]. At the time of his arrest, the suspect was carrying anti-ICE literature [5], which investigators believe suggests a motive targeting U.S. Immigration and Customs Enforcement.

The explosion took place Monday morning [2] and caused significant disruption in the surrounding area. Emergency crews responded to the fire that broke out following the blast [4]. The specific nature of the device used in the explosion has not been detailed in public reports, though the suspect was taken into custody shortly after the event [4].

Law enforcement officials said they are continuing to investigate the extent of the suspect's affiliations and whether the attack was coordinated with other individuals [5]. The presence of ideological literature at the scene has shifted the focus of the probe toward domestic extremism [5].

“A 43-year-old U.S. Army veteran was arrested Monday morning after an explosion occurred outside a federal building.”

This incident highlights the ongoing threat of domestic extremism targeting federal infrastructure. The suspect's background as a veteran and the presence of specific anti-government literature indicate a targeted ideological attack rather than a random act of violence, potentially signaling a rise in militant opposition to federal immigration enforcement agencies.