Report from MUFON:
Date of event: March 9, 2010
Location of event: Plant City, Florida
"Black Triangle UFO with 3 dimly lit lights, 1 in each corner, made no noise, flew over Plant City, FL. Estimated distance from ground to air: 1,000 feet. Flight direction: north by northwest. Estimated speed: 120 MPH.
I went out in my backyard for a few moments tonight and by chance I looked up during that time to enjoy the clear skies and bright starry night when I noticed an object moving north by north west very fast. Due to its dark color blending in with the night sky backdrop, it took a moment to judge its shape. There was no noise at all, and it had 3 dimly lit lights, 1 in each of its 3 corners.
It was a large black triangle. When a plane or helicopter flies over our area at low or high altitude, within a few seconds or sooner you can hear its propeller or jet sound depending on how high it is. This made no noise at all. I observed it for about 30 seconds until it flew out of sight. No other details.