Long strip of flashing red lights in a row climbing up through the clouds.

I was on my way to work and was turn at the intersection when these red lights caught my   attention  to the right of my car when I was making the turn to the left. It was very large with red lights blinking in a straight line, but all I could see was the back end of the object because it was still very dark out and very cloudy and it was there for only a few second before it disappeared in the clouds .It was very quick and I didn't hear anything .