Mysterious lights in Texas sky

Group of green lights spotted hovering near Brushy Creek.
Several people captured a strange formation of green lights
Thursday night hovering and moving above the Brushy Creek
area, prompting them to wonder whether they witnessed
something otherworldly. 
https://youtu.be/M4l1mwysFsA
FOX 7's Rudy Koski spoke with witnesses and a drone expert
to discuss what was seen in the night sky.
https://youtu.be/lZxjTzl--qg