Approaching UFO filmed from cockpit of a private jet over Colombia

This footage comes with no audio and was captured from the cockpit of a private jet whole flying over the Antioquia region of Colombia last month (March 2023). 

Passenger model Valentina Rueda posted a video on her Instagram, which shows an unusual phenomenon. Flying at an altitude of 6 km., she noticed a strange object, which prompted them to maneuver and record the object. 

The video shows an object in the shape of a stealth-shaped UFO approaching and then passing the plane. 

I think we can rule out that it may have been an alien UFO. Most likely it was a known man-made stealth plane or a craft belonging to a secret project.