A viewer told CBS 5 about some surprising video captured early Sunday morning in San Francisco’s Mission District.

In the video, a series of lights fly in formation above the city before appearing to take a diamond shape and eventually disappearing.

Several commenters on the Mission Mission blog said that they had also noticed the aircraft.

The video, which shows seven lights in a row, was shot by Enrique Barrios with his cellphone.

To read more and view the video, click here.