The vast majority of foreign nationals sitting in American federal prisons are illegal aliens, the Department of Justice (DOJ) and the Department of Homeland Security (DHS) revealed in a year-end report.

According to newly released data, nearly 95 percent of all foreign nationals in DOJ custody are illegal aliens in the U.S. In total, there are 58,766 known or suspected foreign nationals in federal prisons at the end of the 2017 Fiscal Year. This includes 39,455 foreign nationals who are in Bureau of Prisons (BOP) custody and 19,311 foreign nationals under U.S. Marshals Service (USMS) supervision.

Of the nearly 60,000 known or suspected foreign nationals in federal prisons, approximately 37,557 have already been confirmed to be foreign nationals by the Immigration and Customs (ICE) enforcement. The other more than 21,000 foreign-born inmates are still under ICE investigation.

A total of 35,334 inmates of the 37,557 foreign nationals identified by ICE are illegal aliens, making up nearly 95 percent of all foreign nationals in federal prisons. This includes 92 percent of foreign nationals in BOP custody and 97 percent of foreign nationals in USMS custody.

Attorney General Jeff Sessions said in a statement that Americans need a national immigration policy that is in the nation’s interest, demanding the Republican-controlled Congress to enact a slew of President Trump’s immigration principles.

Sessions said:

The American people deserve a lawful system of immigration that serves the national interest. But at the border and in communities across America, our citizens are being victimized by illegal aliens who commit crimes. Nearly 95 percent of confirmed aliens in our federal prisons are here illegally. We know based on sentencing data that non-citizens commit a substantially disproportionate number of drug-related offenses, which contributes to our national drug abuse crisis. The simple fact is that any offense committed by a criminal alien is ultimately preventable. One victim is too many. It’s time for Congress to enact the President’s immigration reform agenda so that we start welcoming the best and brightest while turning away drug dealers, gang members, and other criminals.

DHS Secretary Kirstjen Nielsen also demanded immediate pro-American immigration reforms be passed by the GOP-led Congress:

While the administration is working diligently to remove dangerous criminal aliens from our streets, this report highlights the fact that more must be done. We will continue to pursue President Trump’s immigration priorities, including securing the border, enhancing interior enforcement, and pursuing a merit-based immigration system, but Congress must act immediately to adopt obvious solutions to strengthen DHS and DOJ efforts to confront dangerous criminal aliens.

The incarceration data does not factor in the number of foreign-born or illegal aliens currently in custody by states and localities.

John Binder is a reporter for Breitbart News. Follow him on Twitter at @JxhnBinder.