A 21-year-old semitruck driver accused of being under the influence of drugs and causing a fiery crash that killed three people on a southern California freeway is in the country illegally, U.S. Homeland Security officials said Thursday.

Jashanpreet Singh was arrested and jailed after Tuesday’s eight-vehicle crash in Ontario, California, that also left four people injured.

He faces three counts of vehicular manslaughter while intoxicated and driving under the influence causing injury, the San Bernardino District Attorney’s office said.

Singh is scheduled for arraignment Friday. The district attorney’s office said he does not yet have a lawyer.

Singh, of Yuba City, California, is from India and entered the U.S. illegally in 2022 across the southern border, Homeland Security said Thursday in a post on X.

That revelation prompted Transportation Secretary Sean Duffy to restate earlier concerns about who should be able to obtain commercial driver’s licenses. Duffy and President Donald Trump have been pressing the issue and criticizing California ever since a deadly Florida crash in August was caused by an immigrant truck driver the federal government says was in the country illegally.

The Transportation Department significantly restricted when noncitizens can get commercial driver’s licenses last month.

Duffy said this week’s crash wouldn’t have happened if Newsom had followed these new rules.

“These people deserve justice. There will be consequences,” he said in a statement.

Newsom’s office responded that the federal government approved Singh’s federal employment authorization multiple times and this allowed him to obtain a commercial driver’s license in accordance with federal law.