Back in January, multiple pilots witnessed mysterious lights in a triangular formation over the Canadian Prairies.
They say that pilots make for some of the best witnesses when it comes to UFO sightings and that's one of the reasons why this recent incident, which involved multiple pilots all seeing the same thing on the same morning, is so intriguing.
It all happened in the early hours of January 19th between 4:20am and 6:00am.
A 13-minute audio clip (listen below), which has been edited down from several hours of chatter, captures the conversation between the pilots and air traffic control officers concerning the phenomenon.
"I'm certainly no expert, but they're moving side-to-side and then going away from each other and then forming triangles," one of the pilots can be heard saying.
"Yeah, it's quite bizarre," another replied.
"There's around six of them just randomly in formation flying at a high altitude at 12 o'clock."
In total, the crews of four separate aircraft reported seeing the lights which were typically visible high above them at altitudes of up to 100,000ft - way beyond the range of any conventional vehicle.
In addition, two other air crews later reported seeing something similar during recent flights in the same area.
"Yeah, same thing too: movement all over, sometimes they make a triangle, sometimes they make a diamond and square," one pilot recalled. "They're bright and they just appear all over."
The sightings were later documented in Transport Canada's online aviation incident database.
You can listen to the pilot audio for yourself below.