UFO in Vancouver, WAI was outside and saw a blue light in the sky. It was off to the east and seemed to be coming towards me. The light started turning colors (red, blue, white, green) and was very bright. As it flew closer I could tell it was not an aircraft by the way it was moving. It would fly north, come to a complete stop and go the opposite direction. I ran inside to get my roommate so she could see it too. When we got back outside the objest was directly overhead. There were three round, yellow lights shaped like a triangle. It had a beam of light coming out if it in a straight line that changed colors. We watched the light for about another 2 minutes as it manouvered around the sky and changed shape and colors before it disappeared behind a tree.