I saw light moving, in my experience in an inexplicable manner, then at incredible speed disappearing into the sky at near verticle.

Clear night sky, no weather.  Driving through Athens, Texas; Tyler toward Waco, left turn.   At turn to left was church and just above saw green and red light, round but undefined, moving randomly.    
Because of the unique nature of the light, I pulled to the side of the road to observe, thought the light may be from helicopter but realized the movement was to fast and to mobile.  The light moved as a spot light would on the bottom of clouds with random movement but there were no clouds and the lights appeared autonomous.  There were no beams associated either.  
Then instantly the light moved at a high speed, just off vertical (greater than f-16 climb rate by factor of 8-10) and apparent size diminished to the vanishing point.
Witness indicates that the date of the sighting is approximate.  PD