Saw 2 to 4 triangle craft with bright white lights on the angle tips

Traveling northbound on 371 1-2 miles south of Little Falls. We saw 2 large triangle craft with bright white lights on the angle tips on the west side of the highway over a field. At first I thought they were construction cranes because it was dark and they were so bright. They hovered slowly across the highway and I looked up and saw they were triangles. I saw dim yellow greenish lines like gills under one as they passed overhead. I was in a state of shock as we drove through town. Then 1-2 miles north out if town on 371, we saw the same pattern of lights on two objects moving faster than the previous ones. They crossed 371 heading east before disappearing behind the treeline.