I went out to my balcony, then there in the slow moving clouds looked like a saucer. i took a picture and it definitely looks like a ufo hiding in the clouds. this was on may 31st 2017. it lasted for about 15 minutes. there may have been another object in the cloud in front but i couldn't get a good enough picture of that cloud. i noticed this because all the clouds were light in colour except these two clouds. i hesitated for a moment the ran inside for my phone to take a picture. i watch until the clouds moved out of my sight behind other buildings. i am sure it was a ufo.