Fighter jets intercepted aircraft that violated restricted airspace during President Donald Trump's visit to the Chicago area, CBS News reports.

The intercepts occurred while temporary flight restrictions (TFRs) were in effect around the presidential movement. Such restrictions, standard for presidential travel, close a block of airspace to general aviation and require pilots to check notices to airmen before operating in the affected region.

The report did not specify how many aircraft were intercepted, the units involved, or whether any pilots faced enforcement action. In typical cases of this kind, intercepting fighters escort the violating aircraft out of the restricted zone, and the Federal Aviation Administration follows up with investigations that can result in certificate suspension or revocation.

Airspace violations during presidential TFRs remain a recurring operational problem. The intercepts underscore the continued demand on NORAD and Air National Guard fighter units, which maintain alert detachments to respond to incursions during high-profile movements of the president and other protected figures.

Pilots operating near Chicago's busy airspace corridor — one of the most congested in the United States, bracketed by O'Hare and Midway traffic — face added complexity when a TFR layers additional boundaries over routine arrival and departure routes.

Further details on the specific intercepts, including timestamps, aircraft types and any pending enforcement, had not been released at the time of the report.