Four bright orange lights observed in a linear pattern

I observed a bright orange light appear to the north then disappear, then a similar light appear diagonally beneath and to the west of the first light, then disappear, then a third similar light appear diagonally beneath and to the west of the second light then disappear.  
A fourth light matching the first three then appeared centered above the location of the previous three, and then it disappeared.
The sky was clear and I could observe stars in the area, but no objects.  The lights were equally bright and much brighter than the surrounding stars.
Witness elects to remain totally anonymous; provides no contact information.  PD