"Mass server/connection disruptions happening today?"

#PokemonGO: I've saw massive server/connection disruptions during today, around 16:00 pm utc at hong kong.While i had an ex raid today and i didn't face any problems with it possibly because mine was outside the disruption zone, I've heard others who had ex raids in other time zones suffered from widespread disruptions, some had mewtwo ran away while others can't join the raids at all.What was actually causing the disruptions in these 2 days? Is it related to the us air force practice announced maybe a week ago? via /r/pokemongo http://ift.tt/2EfdCDA