I didn’t witness the event. See the news on facebook, approximately an hour after it happens. I start to look for it on google, found a video on youtube, and the local newspapers began to report pictures and videos from people on Instagram and Twitter. There are five balls emitting an intense blue light, it happen between 8 and 9 pm, moving in the sky, one not far away from each other and changing their pattern of flight, sometimes is a V pattern, then an M pattern. I don’t know what happened at the end of the event, if they landed or disappeared, I don’t know. There are many witnesses, apparently.