The celebration of Halloween is in full in GTA Online right now. The UFOs with some ugly aliens are hovering all over the Los Santos. We've found 12 ships above our heads.
The aliens don't love radio, so every station will broadcast static near the UFOs, and all vehicles will turn off. Extraterrestrials also change the weather, so the sky will turn green. There is a bug when you switch to singleplayer, the weather will stay with the apocalyptic look.