A Chinese citizen has been detained at New York’s John F. Kennedy International Airport after federal authorities alleged he took unauthorized photographs of sensitive military aircraft near Nebraska’s Offutt Air Force Base. The individual reportedly intended to target another military site before leaving the United States.

The suspect, identified as 21-year-old Tianrui Liang, stands accused of breaching a federal statute that prohibits photographing defense installations without proper authorization, as detailed in court filings from the Eastern District of New York.

Authorities apprehended Liang on April 7 while he was attempting to board a flight abroad, following the issuance of a warrant in Nebraska days earlier.

The investigation focuses on activities near Offutt Air Force Base, which houses the U.S. Strategic Command, recognized as one of the Pentagon’s most crucial facilities.

An FBI affidavit reveals that the probe began when a witness observed “a male holding a camera with a telescopic lens” in proximity to the base, where several aircraft are stationed on the flight line.

Offutt Air Force Base is home to significant reconnaissance and command aircraft, including the RC-135 surveillance plane and the E-4B “Nightwatch,” commonly known as the military’s “doomsday plane.”

Federal agents say Liang later admitted to photographing several aircraft at the base, “including the RC-135 and the E-4B.”

A U.S. Air Force E-4B assigned to the 595th Command and Control Group, Offutt Air Force Base, Neb., flies on a training sortie over the Midwest, May, 15, 2024. The E-4B is a militarized version of the Boeing 747-200, consisting of four engines, a swept-wing design, and capable of long-range, high-altitude operations and in-flight air refueling. (U.S. Air Force photo by Tech. Sgt. Codie Trimble)

Liang told investigators he used a “planespotter” website to identify photography locations and said the images were for his “personal collection,” according to the affidavit.

Authorities allege he knowingly photographed restricted military assets without permission.

“He knew it was illegal to take pictures of the planes on the ground,” the affidavit states.

U.S. military personnel guide an E-4B “Nightwatch” aircraft, known as the “doomsday plane,” on the tarmac. Federal authorities say similar aircraft were photographed near Offutt Air Force Base in Nebraska as part of an investigation into a Chinese national arrested in New York. (Chris Machian /Omaha World-Herald via AP)

Investigators said a subsequent review of his camera revealed “numerous photographs of planes located on the OAFB flightline,” including images of military aircraft parked on the base.

Liang was a student at Glasgow University in Scotland, according to investigators, and had recently traveled through Canada before entering the United States.

Authorities say Liang entered the United States via Canada and was later found near Offutt Air Force Base in Nebraska. Investigators allege he planned to travel to Oklahoma to photograph additional aircraft at Tinker Air Force Base, including the E-4B.

Investigators said Liang specifically sought out locations where he could view and photograph aircraft from outside military installations.

The law prohibits photographing military installations without approval from a base commander. Prosecutors say there is “probable cause to believe” Liang photographed aircraft at Offutt Air Force Base without that approval.

The affidavit does not allege Liang was acting on behalf of any foreign government.