An individual described as an anti-government extremist ignited an incendiary device outside a federal building in Manhattan on Monday morning, causing a fire and minor injuries to three people, according to the FBI.

Andrew Arrabaca, 43, allegedly poured gasoline on the ground outside 26 Federal Plaza, which houses an immigration court, and set it ablaze using a lighter and a large firework in a canister. He then reportedly fired five to seven pellets from an airsoft rifle in the direction of the building.

FBI Assistant Director in Charge James Barnacle stated that Arrabaca, a former soldier who served from 2001 to 2005, is considered an "anti-American, anti-government extremist." Barnacle added that Arrabaca admitted to targeting the building and expressed indifference to potentially hurting or killing people entering or exiting.

Two government employees and one civilian sustained minor injuries, with the civilian being an immigrant attending an immigration hearing. Arrabaca, who was reportedly carrying anti-ICE literature and wearing a military-style helmet, was apprehended by law enforcement officers. He has a history of anti-Immigration and Customs Enforcement (ICE) activity.

Barnacle indicated that 26 Federal Plaza has been a frequent target for extremists. Arrabaca arrived with multiple weapons, including two axes, a hammer, a machete, and three knives, in addition to incendiary devices. His intentions were to injure and harm individuals, Barnacle said.

During his arrest, Arrabaca allegedly shouted derogatory terms at ICE. Law enforcement found a cart with him that contained anti-ICE literature and a sign reading "ICE Off Our Streets," according to NYPD Commissioner Jessica Tisch.

Arrabaca's military service included working as a mechanic on Patriot missile systems. Officials are continuing their investigation into the incident and Arrabaca's motivations and potential connections.

The incident raises concerns about the security of federal buildings and the potential for radicalized individuals to carry out attacks.