red pulising lights making triangle formations and hovering

two of my friends were leaving for the night, as they were walking out i saw them stop and start recording something up in the sky, ((name deleted))s came running in telling me to come out side quick. 
I couldn't tell if it was 3 red lights or a ball of fire, it was pulsing lightly.  
At first i thought it was some sort of helicopter hovering but then it started zig zagging as it was going up ever so slightly, then stopped raising and hovered for a minute or two making slight left and right movements almost like triangles then started moving to the right slowly then stopped.  
The red ball started flashing inconsistently then faded out, i could see it doing maneuvers far off in the background but it was so lights it hurt my eyes to try and focus that far off.