2 lights dogfighting over SaskatoonI was driving home from Judo at about 9:10-9:15 pm from 12 km south of the city. I was driving north into the city. When I was approx 3-5 km from the city, I noticed 2 red lights moving vertically above Saskatoon basically directly in front of where I was driving. As I was driving I was watching these 2 red lights dogfight over the city. I was wondering why airplanes would fly like this over a city and at night. As I approached the city limits, I was stopped at a red traffic light. I watched these 2 lights straighten out (formed up) and level out fairly high up. All I could see was like 2 LED lights. These 2 lights came towards my position in an S-curve and slowly moved over my car towards a ESE direction. I rushed home but couldnt see anything becuase of city lights. I did call the airport to report the situation but of course never received an answer.There was no sound...