US President Donald Trump says his administration is "reviewing everything" after the fatal shooting by immigration agents of 37-year-old intensive care nurse Alex Pretti in Minneapolis on Saturday,
BBC reports.
In his comments to the Wall Street Journal, Trump also indicated that he would eventually withdraw agents from the city. But he did not give a time frame.
Protests continued in Minneapolis and other US cities on Sunday, as Minnesota Governor Tim Walz warned that America was at an "inflection point".
The facts around the incident - the second fatal shooting by agents of a US citizen in recent weeks - have been hotly contested, setting up a fresh confrontation between state and federal officials.
The administration has defended the officer who shot Pretti. Homeland Security Secretary Kristi Noem said Pretti was shot because he was "brandishing" a gun.
Local authorities deny this, adding that the gun was legally registered and that Pretti was shot after the firearm was removed.
The Wall Street Journal reported that Trump was directly asked twice whether the agent had done the right thing. He responded: "We're looking, we're reviewing everything and will come out with a determination."
He also told the newspaper: "I don't like any shooting. I don't like it." He added: "But I don't like it when somebody goes into a protest and he's got a very powerful, fully loaded gun with two magazines loaded up with bullets also. That doesn't play good either."
The Trump administration is facing pressure from some prominent Republicans, who have joined opposition Democrats in calling for a wide-ranging investigation.
Senator Bill Cassidy said the probe should involve both federal and state officials. Congressman James Comer, an ally of Trump, suggested that the president should consider withdrawing immigration agents from Minneapolis and sending them elsewhere, telling Fox News that the city's mayor and state governor were putting them in harm's way, and "there's a chance of losing more innocent lives".