A circular alien object over Shanghai, China

On April 10, 2019 at 19:45, a shiny circular-shaped UFO was caught over Shanghai, China. What is it?

Witness statement:

The sightings were captured using my iphone xr upon exiting shanghai lujiazui mrt station exit 6 while the focus was mainly on the renowned shanghai tv station tower. i didn't take notice of the sighting until returning to the hotel to review photos taken for the night.

I was wondering what those white lights emitted from the two objects next to the right side of the tower. further realized another one tiny shinny object joined in on the left of the tower in the second photo. subsequent photos only showed the circular object path away where the other two objects were no where to be seen.

I would like mufon to investigate what these objects really are. could it be led kites, drones or real ufo? one thing for sure, this series of photos were taken less than 5 minutes and then moved on to destination shanghai tower right after. thanks.

http://ufostalker.com/sighting/99653, 11th April 2019