June 18, 2012 12:00 AM
I saw three crafts, spaced well apart in a straight line and at the same altitude cross the sky at high altitude moving west to east. All 3 appeared as bright white dots that were strobing simultaneously with each other. A pulses were at about 1 second intervals. At certain point they formed a triangle in and then appeared to drop lose altitude together, remaining in the triangular configuration until we lost sight of them behind hills and objects at ground level. No engine noise whatever accompanied this event.