The ​U.S. has halted all flights to and from El Paso International Airport in Texas near ⁠the ‌border with Mexico for “special security ⁠reasons,” the U.S. Federal Aviation Administration said on Wednesday, without giving more details.

The airport, which is next to ‌the U.S. military’s Biggs Army Airfield and sits over the border from the ​Mexican city of Juarez, said all flights were grounded in a post on Instagram.

The airport said the restrictions were issued “on short notice” and that it was ‌waiting for additional guidance from the ‌FAA, according to The New York Times.

The FAA said the temporary restrictions would be ⁠in place until February 21 and covered a radius ⁠of about 10 nautical miles from ⁠the airport, though they did not include Mexican airspace.

The FAA did not immediately ​respond to a ‌Reuters request for details about the “security reasons”.