Two detainees have died and another is 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. 'These despicable, politically motivated attacks against law enforcement are not a one-off.'
FBI special agent Joe Rothrock told a news conference that rounds found near the gunman contained 'messages that are anti-ICE in nature'. 'This is just the most recent example of this type of attack,' he said. He mentioned that the FBI was investigating it as 'an act of targeted violence'.
Dallas police said a preliminary investigation determined the suspect had opened fire from an adjacent building.
'The shooter fired indiscriminately at the ICE building, including at a van in the sallyport where the victims were shot,' the Department of Homeland Security (DHS) said in a statement.
The building targeted is an ICE field office used for short-term processing of recently arrested detainees, and is not used as a detention facility.
Acting director of the Dallas ICE office Joshua Johnson told the news conference it was the second time he has had to stand in front of the media and talk about a gunman at one of his facilities. 'The takeaway from all of this is that the rhetoric has to stop,' he said.
Texas Senator Ted Cruz also spoke at the news conference, condemning 'politically motivated violence'. 'Your political opponents are not Nazis,' he said, urging people not to demonise each other for partisan reasons. 'The divisive rhetoric, tragically, has real consequences.'
Homeland Security Secretary Kristi Noem stated that this shooting must serve as a wake-up call to the far-left about the consequences of their rhetoric regarding ICE. US Vice-President JD Vance and Texas Governor Greg Abbott condemned the attack and emphasized the importance of supporting law enforcement.