I walked outside my place of employment at approximately 10:14 pm and noticed lights across the street at a building that had been closed down for a few years. I took pictures and watched them for a few minutes. They were moving and then changed direction. They were white and i could see blue and orange colors on them. I have no idea what they were and have never seen anything like it before. After a few minutes, they just disappeared. There was nothing going on at the time and sky was clear. Seemed very odd to me which is why i took pictures with my phone. Would be interested in any ideas anyone may have. Thanks, Tanya