Ice disc used for alien landing?

A rotating ice disk was formed in the Presumpscot River in Westbrook, Maine United States.

It was close to 100 meters and spinning in a counter-clockwise direction.

The discs formation is very unusual and was formed due to cold weather and water currents. The rotating disc saw birds riding on it like a raft.

People drew comparison of  the ice disc to that of an alien spaceship landing. Some of them also compared it to the craters of the moon.

The marketing manager of the city had taken a drone footage of the rotating ice disc.