Green balls of light, approximately 4-6 were moving across they sky and back doing weird loops (across 3-4 blocks and in different areas and going in different directions in the sky) in Regina, Saskatchewan at approximately 9:30-9:45 pm. I had just come outdoors from inside so they could have been in the sky longer. The clouds were low so the balls of light were just above the clouds and were the colour of green like an aurora. They moved fairly fast and they were not coming from one source. They were seen by multiple people. I tried to take a photo with my phone but it just turned out black.