A detainee has died and two others are critically injured after a rooftop sniper opened fire at an Immigration and Customs Enforcement (ICE) centre in Dallas, Texas, officials say.
The gunman fired indiscriminately at the ICE facility and at a nearby unmarked van, law enforcement officials say, before dying from a self-inflicted gunshot wound.
No law enforcement were injured. FBI Director Kash Patel posted a photo on X of unused ammunition recovered from the scene. One casing has the phrase ANTI-ICE on it.
It is the latest in a string of attacks on ICE facilities in recent months as the agency ramps up efforts to deliver on US President Donald Trump's pledge for mass deportations.
While the investigation is ongoing, an initial review of the evidence shows an ideological motive behind this attack, Patel wrote on X.
Dallas police said officers responded to an assist officer call at the facility around 06:40 local time (11:40 GMT).
The Department of Homeland Security (DHS) said three detainees were shot. One has died, and two were critically injured, it said.
The department had initially said two people had died in addition to the shooter, only to revise that information conditions hours later.
Jahn had cannabis-related charges in Texas dating back to 2016, according to records seen by the BBC.
The shooter deliberately targeted law enforcement with a high-powered rifle, according to acting ICE director Todd Lyons.
Texas Senator Ted Cruz condemned politically motivated violence during a conference where officials discussed this attack.
Homeland Security Secretary Kristi Noem stated the shooting should be a wake-up call to the far-left regarding the consequences of their rhetoric about ICE.
All sides of the political spectrum have expressed concerns over the escalation of violence against law enforcement as the shooting highlights a need for responsible dialogue and a reduction in divisive political rhetoric.