More than 800 individuals have been detained by U.S. Immigration and Customs Enforcement (ICE) based on information provided by the Transportation Security Administration (TSA), reports Reuters.

Internal ICE data shows that TSA supplied information on 31,000 travelers for potential immigration checks. These figures cover the period from the start of Donald Trump’s second presidential term through February 2026. Reuters noted that it could not determine how many of these detentions occurred at airports.

The 31,000 passenger records were collected under the TSA Secure Flight program, established in 2007 to allow the federal airport security agency to check passenger information against federal watchlists. The program was intended as an anti-terrorism measure, not as a tool for enforcing immigration rules.

Reports of ICE agents detaining airline passengers at domestic airports have drawn criticism from some users. Last year, ICE detained a college student traveling from Boston to Texas in November for Thanksgiving.

In March, President Trump said he would deploy ICE personnel to airports to support security if Democrats failed to pass a funding bill for the Department of Homeland Security. According to Trump, the presence of ICE agents would help TSA, which is facing staffing shortages and furloughs due to a partial shutdown. ICE operations continue to be funded through the shutdown.

Democrats criticized the deployment of ICE agents at airports and called on the Trump administration to remove them. Reuters reported that a group of more than 40 House Democrats sent a letter last week to the new Homeland Security Secretary, Marquain Mallin, saying that ICE officers “will create confusion and fear” if allowed to remain in airports.