Black Triangle Sighting in Haughton, Louisiana on June 11th 2015 – large, silent, speedy triangular craft passed directly overhead

Was outside with dogs, and is my habit, I was watching the sky. Noticed a craft coming from NNW and passing directly overhead. First thing that occurred to me was that there were no anti-collision lights or strobe. There were 3 steady white lights on the corners and a steady red light centered below. Hard to estimate elevation and speed as it was clear with no clouds visible. Was only in view for about 3-4 seconds before disappearing over the trees to the south. Absolutely no sound!