The latest incident, Friday afternoon, occurred while four U.S. Air Force T-38 Talons were en route to Arlington National Cemetery in northern Virginia for a flyover, the Federal Aviation Administration said in a statement. A T-38 Talon is a two-seat supersonic jet used to train pilots, according to the Air Force.

Around 3:15 p.m. local time, Delta Flight 2983, bound for Minneapolis, took off from Ronald Reagan Washington National Airport. Soon after, an alert sounded off inside the cockpit of the passenger plane, indicating that another aircraft was nearby, the FAA said. In response, air traffic controllers issued “corrective instructions” to both aircraft, the agency said.

VASAviation visualization with ATC traffic:

https://www.youtube.com/watch?v=bPQjQ23YTJo