They disappeared behind the only cloud in the sky.

My wife and I in our balcony terrace. She was 22 and I was 31. Around five in the morning. The sky was clear. No clouds except only one small dark cloud in the center of the sky. Then appear 3 lights in our vision focus (I mean behind buildings)... from west to east, with erratic movement. They were not airplanes. No sound. Very fast pace and erratic up and down movements. Two of the lights were rounded and the third light was like a cigarette. The three light were yellow. The rare thing was the three went behind the only cloud in the sky and then disappeared. I mean, the lights did not go out from that cloud. We stand there for about 3o more minutes to see if the lights go out but the lights never go out from that cloud in the center of the sky.
Witness elects to remain totally anonymous.  Date may be approximate.  PD