Occurred during early evening hours.
A large UFO, witnessed by many in neighborhood, hovered over open field at end of housing project.
Loud, hummimg sound emitted, but no other noise.
No white lights but, edge of craft encircled by blue light, turning to green and then to red light.
No one in crowd felt threatened, no panic and I couldn't beleive it.
Just in awe, everyone almost frozen.
It was directly over our heads in a wide-open farm field.
I don't remember how long it was there.
I ran home to tell my parents, I was 7 yrs. old at the time.
I didn't see craft appear or disappear, it was so fast.